Modeling Tools for Environmental Engineers and Scientists Episode 2 ppsx

... Software for Read and Read and Read and Read and Read and Read and Read and developing review review review review review review review mathematical models 8 Modeling of Read and Read and Read and ... software program regulators 2 Fundamentals Read and Read and Read and Read and Review of mathematical review review review review modeling 3 Primer on Read a...

Ngày tải lên: 13/08/2014, 05:22

... correlations: k f ϭ ᎏ N d Sh p E ᎏ C C vL E vL E vL E out in =     +     −+ −     4 2 1 2 1 2 22 β ββ exp ()exp ()exp Figure 8 .24 Chemical oxidation process modeled numerically in Extend ™ . Chapter 08 11/9/01 9:33 AM Page 22 5 © 20 02 by CRC Press LLC high ... AM Page 21 8 © 20 02 by CRC Press LLC interpretation to the real system, the spacing for the desired goal...

Ngày tải lên: 13/08/2014, 05:22

... oxygen absorption and nitrogen desorption in packed towers, Aquacultural Eng., 7, 22 1 23 4, 1988. Nirmalakhandan, N., Jang, W., and Speece, R. E. Counter-current cascade air-strip- ping for removal ... E., and Nirmalakhandan, N. Sequencing batch reactor treatment of high COD effluent from a bottling plant, ASCE J. Env. Eng., 125 , 28 5 28 9, 1999. Law, V. J., Johnson, N. L., Oyefod...

Ngày tải lên: 13/08/2014, 05:22

... in modeling of environmental systems is included in Chapter 3. Chapter 02 11/9/01 9:31 AM Page 25 © 20 02 by CRC Press LLC 2. 2.1 PROBLEM FORMULATION As in any other field of scientific study, formulation ... =0+ε (2. 22) Now, substituting from the previous expressions for C, –EA ΂ ᎏ d[C d 0 x e gx ] ᎏ ΃ x =0–ε + W = –EA ΂ ᎏ [C d 0 e x jx ] ᎏ ΃ x =0+ε (2. 23) and simplifying,...

Ngày tải lên: 13/08/2014, 05:22

... more on formulating and posing the prob- lem at hand in standard mathematical forms rather than on the operandi of solving the formulation. ᎏ 1. 2 23 ᎏ {e 1 .23 t } ϩ b ᎏᎏ e 1 .23 t ∫{e 1 .23 t 2} dt ... X1 + 6 X2 + 2 X3 = 11 2 X1 + 6 X2 + X3 = 21 3 X1 + 2 X2 + 5 X3 = 75 Solution Figure 3 .2 shows an Excel ®3 implementation for solving the three equa- tions, which are entere...

Ngày tải lên: 13/08/2014, 05:22

... ᎏ m k o J le ᎏ ᎏᎏᎏᎏ 0.008314 ᎏ mo k le J -K ᎏ (25 + 27 3)K Chapter 04 11/9/01 11:10 AM Page 93 © 20 02 by CRC Press LLC Table 4 .2 Different Forms of Quantifying Phase Contents and the Resulting Forms of Henry’s Constant Multiplication ... × ΄ ᎏ 10 6 g mg ᎏ ΅ × ΄ ᎏ 1 1 0 9 k µ g g ᎏ ΅΃ = 0 .26 8 × 10 –3 = 0 .26 8 × 10 –3 ᎏ ft 2 m – g day ᎏ = 0 .26 8 ᎏ ft 2 µ – g day ᎏ 4.6.3 VOLA...

Ngày tải lên: 13/08/2014, 05:22

... data of: τ 1 = 10 days, τ 2 = 5 days, k 1 = 0 .2 * 10 – 0.3 = 1.7, and k 2 = 0 .2 * 5 – 0.3 = 0.7, ᎏ C C 2, i o n ut ᎏ = ΂ ᎏ 1+(1 1 .7)(10) ᎏ ΃΂ ᎏ 1+(0 1 .7)(5) ᎏ ΃ = 0.0 123 and, hence, the percent ... ϭ ΂ ᎏ C C 3,o 2 ut ᎏ ΃ – 1 = 12. 35 – 1 = 11.35 0.001 ᎏᎏ Ά΂ ᎏ C C i 1 n ᎏ ΃΂ ᎏ C C 2 1 ᎏ ΃· Chapter 05 11/9/01 11 :23 AM Page 1 12 © 20 02 by CRC Press LLC the VOC inside th...

Ngày tải lên: 13/08/2014, 05:22

... exp ΄ ᎏ 2 u E x x ᎏ ΅ K o Ά ᎏ 4 u E 2 x ᎏ ΂ ᎏ E x 2 x 2 ᎏ ϩ ᎏ E y 2 y 2 ᎏ ΃· where K o is the modified Bessel function of second kind and zero order. C 0 ᎏᎏ ͙4π 2 E x ෆ E y ෆ M ᎏᎏ 2A͙πEt ෆ L ϩ ut ᎏ 2 E x t ෆ L ... uniform velocity of the aquifer, U = 1, radius of pond, R = 20 0, and recharge flow, Q = 1000 π. Uniform flow: ␾ = –ux Doublet: ␾ = ᎏ x 2 R ϩ 2 x y 2 ᎏ So...

Ngày tải lên: 13/08/2014, 05:22

... learn and use, and very fast and powerful for alge- braic operations. Applications of Excel ® in modeling environmental systems have been well documented (Hardisty et al., 1993; Gottfried, 20 00). ... features of MATLAB ® can be Chapter 07 11/9/01 9:33 AM Page 173 © 20 02 by CRC Press LLC different forms for different initial conditions and forcing functions, the com- plete...

Ngày tải lên: 13/08/2014, 05:22

... − +π       +π       + +π       = ∑ 0 2 2 0 0 4 2 4 21 21 21 21 Figure 9 .25 Problem definition for visualization of groundwater flow. Chapter 09 11/9/01 9:37 AM Page 28 4 © 20 02 by CRC Press LLC The governing ... (diameter < 20 µm) pollutants emitted by a stack of effective height, H: Spatial distribution: C(x,y,z) = ᎏ 2 σ M y σ z U ᎏ ΄ exp Ά – ᎏ 2 y σ...

Ngày tải lên: 13/08/2014, 05:22