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Download GTU BE/B.Tech 2019 Summer 8th Sem New 2181925 Computational Fluid Dynamics Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 8th Sem New 2181925 Computational Fluid Dynamics Previous Question Paper

This post was last modified on 20 February 2020

This download link is referred from the post: GTU BE 2019 Summer Question Papers || Gujarat Technological University


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Seat No.:

Subject Code: 2181925

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Enrolment No.

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER-VII(NEW) EXAMINATION - SUMMER 2019

Subject Name: Computational Fluid Dynamics

Time: 10:30 AM TO 01:00 PM

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Instructions:

  1. Attempt all questions.
  2. Make suitable assumptions wherever necessary.
  3. Figures to the right indicate full marks.

Q.1

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(a) Explain three different approaches of fluid dynamics? [03]

(b) Discuss the analogy between the steady state and unsteady state, Laplace equation using proper physical interpretation. [04]

(c) What is partial derivative and substantial derivative? Derive continuity equation for any of the models. [07]

Q.2

(a) Explain the models of fluid flow. [03]

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(b) What are conservation and non conservation forms of governing equations? [04]

(c) Derive momentum equation for viscous flows. [07]

OR

(c) Derive the governing equations for the velocity boundary layer. [07]

Q.3

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(a) Write Euler’s model in generic form. [03]

(b) Write Navier stokes model in generic form [04]

(c) What is Descretization? Why it is required? List the basic descretization techniques. [07]

OR

Q.3

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(a) Explain the different boundary conditions applied to fluid flow domain. [03]

(b) Derive Reynolds Transport Theorem. [04]

(c) Explain in detail basic steps for Mac-Cormark Technique. [07]

Q.4

(a) Explain how to find “a second-order-accurate finite-difference at the boundary using a polynomial approach. [03]

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(b) Derive an exact analytic solution for Prandtl — Meyer expansion wave. [04]

(c) Write a short note on error and stability. And define the stable equation [07]

OR

Q.4

(a) Differentiate FDM, FEM and FVM. [03]

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(b) Explain the concept of transformation of the grid. [04]

(c) Write a short note on implicit approach and explicit approach. [07]

Q.5

(a) What is a Grid? What are the factors affecting the grid? [03]

(b) Explain grid terminology with a neat sketch [04]

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(c) Explain the steps for CFD preprocessing. [07]

OR

Q.5

(a) What is CFD? Why it is required? List the areas where it is applicable? [03]

(b) Explain structured and Unstructured grid. [04]

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(c) Derive the generic form for CFD for the complete flow system. [07]

Date: 13/05/2019

Total Marks: 70


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This download link is referred from the post: GTU BE 2019 Summer Question Papers || Gujarat Technological University