spalart allmaras turbulence model for compressible flows
Development of lattice boltzmann method for compressible flows
Ngày tải lên :
14/09/2015, 14:01
... Boltzmann models LB models for compressible flows 1.3.1 Current LB models for incompressible thermal flows 1.3.2 Current LB models for compressible ... some LB models for compressible flows were proposed In this subsection, we briefly introduce four LB models for compressible flows Although there are some other models, these models are typical models ... methods Compressible flows are thermal flows in nature But thermal LB models are not as mature as isothermal LB models For incompressible thermal flows, there are several feasible models But for compressible...
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Development of a generic three dimensional model for stratified flows
Ngày tải lên :
04/10/2015, 15:46
... flow and practical turbulence closure models are outlined Some remarks of typical turbulence models are summarized Chapter Three gives the detailed formulations of 3D hydrodynamic model developed ... is therefore the main aim of the turbulence model to predict the effect of these Reynolds stresses on the mean flow Consequently the next step in the turbulence modeling process is the formulation ... the large-scale and small-scale turbulence The large-scale turbulence is solved for by the discretized equations whereas the small-scale turbulence is modeled Since turbulence is three- 19 Chapter...
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Báo cáo khoa học: "Interpreting the variations in xylem sap flux density within the trunk of maritime pine (Pinus pinaster Ait.): application of a model for calculating water flows at tree and stand levels" pdf
Ngày tải lên :
09/08/2014, 04:20
... procedure used for estimating the branch and stem capacitance for day 153 We did not observe any clear change in the stem or branch capacitance for the four sample days at the Bray site 4.3 Model evaluation ... and show the model s outputs together with measured data for two representative days at the Carrasqueira and Bray sites, respectively The parameter values used for implementing the model have been ... xylem of the trunk of Larix and [30] [31] Tyree M.T., A dynamic model for water flow in a single tree: evidence that models must account for hydraulic architecture, Tree Physiol (1988) 1985-217 Tyree...
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High order schemes for compressible viscous flows
Ngày tải lên :
09/09/2015, 18:52
... Problem setup for flow over open cavity 169 7.2 Mesh for computation of acoustics for open cavity problem 169 7.3 Snapshot of contour of velocity magnitude for Re 2500 ... flow models Some of them in the order of increasing computational cost are: Reynold’s Averaged NS (RANS) equation models, Detached Eddy Simulation (DES) models and Large Eddy Simulation (LES) models ... order functional representation for the solution within the cells For such schemes, the FV WENO formulation would result in loss of resolution as the higher order infor- 12 Chapter Introduction...
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Computational simulation of detonation waves and model reduction for reacting flows
Ngày tải lên :
10/09/2015, 15:48
... the POD-Galerkin models and the POD-DEIM models 122 6-5 Example 2: Comparison of computational time between the full model, the POD-Galerkin models and the POD-DEIM models 122 ... reduced-order models of different sizes K and L 131 6-12 Comparison of the average computational simulation time between the POD-DEIM reduced-order model, the POD model, and full model for one time ... Numerical Method for Reacting Problems 15 2.1 Conservative Navier-Stokes equations for reacting flows 16 2.2 Combustion model 19 2.3 Equation of state for a perfect...
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High resolution numerical methods for compressible multi fluid flows and their applications in simulations
Ngày tải lên :
14/09/2015, 08:44
... volume-fraction-based fluid mixture model is recovered first for inviscid, compressible multi-fluid flows Then, viscosity and gravity are added to the inviscid model 2.1.1 Inviscid Model Based on ensemble averaging, ... point, the inviscid model system is closed completely 2.1.2 Model with Viscous Effect and Gravity Perigaud and Saurel (2005) proposed a quasi-conservative formulation for compressible multi-fluid ... simplified version of model in Perigaud and Saurel 22 Chapter High-resolution Methods for Multi-fluid Flows with Stiffened Gas EOS (2005) The derivation of that model is not repeated here For details, refer...
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Báo cáo y học: "MALDI-TOF MS Combined With Magnetic Beads for Detecting Serum Protein Biomarkers and Establishment of Boosting Decision Tree Model for Diagnosis of Colorectal Cancer"
Ngày tải lên :
25/10/2012, 11:18
... normal controls Peaks labeled by * were selected as biomarkers for CRC diagnostic model Figure The decision trees of diagnostic model for CRC Each node was represented with different m/z value and ... differentially expressed proteins was advocated for biomarkers of diagnosis for colorectal cancer Materials and methods Patients Experiment was performed in Taizhou Municipal Hospital, Zhejiang, ... and allowed to clot at room temperature for up to hr; the samples were then centrifuged at 4℃ for at 10000 rpm The sera were frozen and stored at -80℃ for future analysis Table Clinical Tumor-Node-Metastasis...
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Báo cáo y học: "Multivariate explanatory model for sporadic carcinoma of the colon in Dukes’ stages I and IIa"
Ngày tải lên :
03/11/2012, 11:34
... controls) in DBase IV format was combined with the new data package in an EXCEL format and with a total of 308 records was made The package in EXCEL format was exported to SPSS format for its later statistical ... The predisposing effect for the condition was potentiated for both variables at the individual level (OR of 1.051 for AGE and OR of 1.138 for CA 19.9) with respect to the model obtained with raw ... capacity for SCRC when attempting to include it in multivariate models [28] In this investigation, CEA was not included as an explanatory variable because it did not form part of the original model...
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Application of house’s model for translation quality assessment in assessing the english version of the vietnam’s law on investment no. 59/2005/qh11
Ngày tải lên :
07/11/2012, 14:36
... HOUSE’S MODEL FOR TRANSLATION QUALITY ASSESSMENT 2.1 Presentation of the model Julian House is a German linguist She first proposed her model for translation quality assessment in 1977 in A Model for ... APPLICATION OF HOUSE’S MODEL FOR TRANSLATION QUALITY ASSESSMENT 2.1 Presentation of the model 27 27 2.1.1 An overview of the model 27 2.1.2 Operation of the model 28 2.2 Application of the model 31 2.2.1 ... Investment of Vietnam Therefore, a set of parameters for assessment is necessary Among the various criteria and models for translation quality assessment, House’s model is chosen in this study...
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A DISTRIBUTED WATER QUALITY TANK MODEL FOR NITROGEN LOAD REDUCTION BY ARTIFICIAL WETLANDS
Ngày tải lên :
05/09/2013, 09:08
... lower than the measured values As for nitrogen load, the relative errors become small—the average relative errors are about 10% for point B, 30% for point C and 20% for point D In addition, Fig shows ... tank were 28 and 10.35 g·d–1, respectively (IPLEDKCS, 1999) Model calibration and verification The trends in the measured data for point A for the period from 10 August to 31 December 2001 were simulated ... differ depending on the land use, the dissolution rate (α) is set to 0.5 for the upland fields, 0.0 for livestock and 1.0 for others, that is, the nitrogen load from fertilizers is divided into...
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Developement of Multi-Agent system (MAS) model for Bac Lieu case study
Ngày tải lên :
16/10/2013, 01:15
... This iterative modeling is done in close interaction with stakeholders, who, along with the modelers, use the models for scenario planning.” This is how we would like to use the models: we try ... points of intervention and to construct a bank of options for resource management” The role of modeling is formulated in this context: “Modeling proceeds iteratively by successive approximations ... Then the model is used with the stakeholders to explore various scenarios This approach has been called companion modeling (Bousquet, et al 1999) MODELS 3.1 Conceptualisation The first model we...
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Fault tree synthesis from a directed graph model for a power distribution network
Ngày tải lên :
03/01/2014, 19:37
... DIRECTED GRAPH MODEL FOR A POWER DISTRIBUTION NETWORK Find equipment failures that reverse the normal gain of the branch so that the overall loop becomes positive feed forward The formal NFFL operator ... and effect models can be developed for in0sal l ar0 dividual devices (such as switches, voltage supplies, senVS +1 sors) and then connected by linking input variables from TI-M TI one model with ... CUMMINGS ET Al.: FAULT TREE SYNTHESIS FROM A DIRECTED GRAPH MODEL FOR A POWER DISTRIBUTION NETWORK Each of the mains, A(l), and transformers, T(i), are sized to carry the entire plant load The...
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Tài liệu A Global Model for Regulatory Reform doc
Ngày tải lên :
26/01/2014, 02:20
... customers and citizens for having redundant or country-unique tests ? * One Test includes Supplier’s Declaration of Conformity option June 24, 1998 Model for Regulatory Reform One Standard feedback ... *requirement for FCC - acceptable accredited test labs June 24, 1998 Progress Toward One StandardOne Test, SDoC for IT Products Information Technology Industry Council (US) … years this form since ... How you optimize the Value of Information Technology (IT) products for both Customers and Citizens? June 24, 1998 The Opportunity is Based on Three Concepts For IT Regulations 1of Product Safety...
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Tài liệu A COMPREHENSIVE QUANTITATIVE MODEL FOR ANALYZING BOND REFUNDING DECISIONS pptx
Ngày tải lên :
15/02/2014, 13:20
... Comprehensive Quantitative Model For Analyzing Bond Refunding Decisions 21 The Model Specific values for each of the variables identified in 1-5 above are used as input data to the model to determine ... model showing that over the next 30 years the NPV of cash flows is $4,689,744 Therefore, it would be advantageous for Firm A to refund the existing bond issue TABLE Abbreviated Calculations For ... Cash Flows $4,689,744 The model presented in the paper allows for changes to all of the input variables so that further what-if analyses can be performed in investigating the refunding decision For...
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Tài liệu Evolving the neural network model for forecasting air pollution time series pdf
Ngày tải lên :
17/02/2014, 22:20
... adequate information for achieving the performance described in the results Results 3.2 Validation statistics 3.1 Evolved MLP models The validation statistics is presented for each model and the ... 2.6 Fitness assessment of MLP model The evaluation (fitness assessment) of MLP models was carried out in straightforward manner by running the real system for each model five times (in order to ... for evolving the MLP models 0.16 ð3Þ 0.15 i¼1 2.7 Model evolution runs and validation Finally, the coarse-grained GA with the selected parameters (Section 2.5) was used for evolving the MLP for...
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Tài liệu The Dynamic Retention Model for Air Force Officers- New Estimates and Policy Simulations of the Aviator Continuation Pay Program doc
Ngày tải lên :
17/02/2014, 23:20
... Prepared for the United States Air Force Approved for public release; distribution unlimited PROJECT AIR FORCE The research described in this report was sponsored by the United States Air Force ... report documents a particular type of model, the dynamic retention model (DRM) developed by Glenn A Gotz and John Joseph McCall in A Dynamic Retention Model for Air Force Officers: Theory and Estimates, ... Dynamic Retention Model for Air Force Officers: Theory and Estimates, Santa Monica, Calif.: RAND Corporation, R-3028-AF, 1984 CHAPTER TWO A Dynamic Retention Model The dynamic retention modeling technique...
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Tài liệu Towards a conceptual reference model for project management information systems ppt
Ngày tải lên :
18/02/2014, 07:20
... information models describe the static or dynamic aspects of information systems Consequently, models are distinguished as those presenting information structures, i.e data structures (data models), ... available for the modelling of IS One of the most prominent and widely used is the Unified Modeling Language (UML) [15] UML allows class diagrams to be used for data modelling and activity diagrams for ... keeping with Thomas, a reference model is defined as an ‘‘information model used for supporting the construction of other models” [19, p 491] The use of reference models is frequently based on the...
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Tài liệu Báo cáo khoa học: "A Statistical Model for Unsupervised and Semi-supervised Transliteration Mining" pptx
Ngày tải lên :
19/02/2014, 19:20
... for transliteration mining These methods model the conditional probability distribution and require supervised/semi-supervised information for learning We propose a flexible generative model for ... evaluated on the NEWS10 dataset generally used heuristic methods, discriminative models or generative models for transliteration mining (Kumaran et al., 2010a) The heuristic-based system of Jiampojamarn ... semi-supervised systems we mentioned, our model can be used for both unsupervised and semi-supervised mining in a consistent way Unsupervised Transliteration Mining Model A source word and its corresponding...
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Tài liệu Báo cáo khoa học: "A Hybrid Hierarchical Model for Multi-Document Summarization" ppt
Ngày tải lên :
20/02/2014, 04:20
... hierarchical model and regression model to score sentences in new documents, eliminating the need for building a generative model for new document clusters characterize their candidacy for inclusion ... Later, we build a regression model with the same features as our HybHSum to create a summary We train models with DUC2005 and evaluate performance on DUC2006 documents for different parameter values ... Clustern fq f-input features f1 f2 f3 fq h(f,y) : regression model for sentence ranking Figure 3: Flow diagram for Hybrid Learning Algorithm for Multi-Document Summarization Conclusion parametric inference...
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Tài liệu Báo cáo khoa học: "A Unified Graph Model for Sentence-based Opinion Retrieval" pdf
Ngày tải lên :
20/02/2014, 04:20
... indeed relevant to the target concerned Therefore, we argue that existing information representation i.e bag-of-word, cannot satisfy the information needs for opinion retrieval In this paper, we propose ... contextual information to express relevant opinion, and inter-sentence information to measure the degree of each word pair through a graph-based model in the following section 3.2 HITS Model We propose ... Retrieval Model Comparison To demonstrate the effectiveness of our proposed model, we compared it with the following models using different evaluation metrics: (1) IR: We adopted a classical information...
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