question archive This is an assignment where I have to use the software Ansys Fluent
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This is an assignment where I have to use the software Ansys Fluent. I am not given that much time to learn the software and need help completing this assignment. Some explanation if you can provide it will be helpful because I am trying to still understand the problem outcome.Consider a 2-D channel with the geometry shown in Fig.1. Use Ansys-FLUENT software for modeling of the flow-field inside the channel. Assume a single-phase flow with the following fluid properties: Density=1000Kg/m3, Viscosity=7.5cps 1. Perform the CFD simulations for 3 different inlet velocities (V1=0.01m/s, V2=0.5m/s, V3=2m/s). For each case, report the Reynolds number. For turbulent flow regimes change the viscous model in the physics tab from laminar to the SST-KW model and do not change the other tabs. Report the property of mesh (mesh size and mesh number) along with a figure showing the grid. Provide a summary of the adopted CFD model and the boundary conditions. (20 points) 2. Report the streamlines, velocity contour, and velocity vectors for each case. Compare and discuss the observed differences between the results obtained for different inlet velocities. (25 points) 3. Plot the velocity profiles at (a) the end of elbow and (b) the T-junction for three streams for different inlet velocities. Compare and discuss the observed differences between the results obtained for different inlet velocities. (20 points) 4. Report the pressure drop in the expansion section and the elbow and explain the obtained results. Compare the results with empirical pressure loss tables for pipeline design (Fluid Mechanics course). Compare and discuss the observed differences between the results obtained for different inlet velocities. (20 points) 5. Report the mass flow rate and the flow rate ratio with respect to the inlet for outlets. Compare and discuss the observed differences between the results obtained for different inlet velocities. (15 points) Fig.1 The geometry of the channel The Geometrical properties D1=0.05m, D2=0.2m, D3=D4=0.2m, R=0.2m, L1=0.5m, L2=0.5m, L3=0.3m, L4=L5=0.4m CHME 470 Name: BCQ-11 Score: Steven Liaw This is a closed-book, closed-note quiz. Date: 5/8/21 4. What kind of dose occurs over a relatively long time? Answer: Note that some answers may be used more than once, A. Acute dose B. Absorbed dose 5. What kind of dose occurs over a relatively short time? Answer: C. Chronic dose D. Deterministic effect The next seven items refer to the following equation: E. Effective dose F. Equivalent dose E = ∑ wT ∑ wR DR,T = ∑ wT HR T G. gray (Gy) R (1) T H. Hereditary effect I. LD50 J. LNT 6. What is E called? Answer: K. joule (J) L. rad M. Radiation weighting factor 7. What is the SI unit of E? Answer: N. rem O. sievert (Sv) 8. What is the traditional unit of E? P. Somatic effect Q. Stochastic effect R. Tissue weighting factor Answer: 9. What is DR,T ? Answer: 1. What kind of effect typically has a threshold dose? Answer: 10. What is the SI unit of DR,T ? Answer: 2. What kind of effect is usually thought to have no threshold dose? 11. What is the traditional unit of DR,T ? Answer: Answer: 12. What is wT ? Answer: 3. What kind of effect occurs solely in the person exposed, and not in his or her progeny? Answer: CHME 470 Introduction to Nuclear Energy Spring 2021 Moody Diagram 1 1 1 1 1 1 1 1 1 1 111 1 + --I--I- 11 1 1 1 -I- 0.1 0.09 0.08 0.07 ! Transition Region 1 1 -I --I-1 1 1 1 11 ---- 2- + +--- II TIIN II 0.05 0.04 0.03 TI 1 0.06 --- 1 III --+-1-1 -E4 0.05 11 ! 1 IIIII 111 ! 0.02 0.015 0.01 I 0.04 is III III II 1 0.03 0.005 III 1 Friction Factor ???? ? ? . . 0.002 Laminar Flow::: 11 64 iiiii Re 0.02 -FR I III 11 Relative Pipe Roughness IIIIII ??-???? I 0.001 1 . ????? 5x10-4 + ! 11 0.015 1- 1 !!! 1 1 1 ----1-1-1-1 ! HEE 1 NI NII NO IN Complete Turbulence Material € (mm) Concrete, coarse 0.25 Concrete, new smooth 0.025 Drawn tubing 0.0025 Glass, Plastic Perspex 0.0025 Iron, cast 0.15 Sewers, old 3.0 Steel, mortar lined 0.1 Steel, rusted 0.5 Steel, structural or forged 0.025 Water mains, old 1.0 2x 10-4 10-4 5x10-5 1 1 1 11 1 II !!! 0.01 -?-?-? - ? ? ? ? -- ? sin ! 1 J-LJJJ IIIII LU T 1-1-LIIN1 111 III IIIIIII -I-III IIIII 1 .???. -?- . Friction Factor = 2d ΔΡ . 10-5 5x10-6 10-6 .. Smooth Pipe 1 ! III 103 104 107 108 105 106 Reynolds Number, Re = PVd u