flow solver, Other Engineering

Assignment Help:

 Flow Solver

The flow solver of FP utilises data produced by the grid generator, together with data read from an input file named FLOW.DAT, and proceeds to calculate the solution to the exact (or full) potential equation of inviscid compressible flow in three dimensions, by a method of finite-differences. The solution algorithm uses repeated iterations with 'over-relaxation'. The speed of overall convergence is improved by the facility to perform the relaxation scheme on three different levels of grid fineness. The finest grid (level 1) corresponds to the grid as produced by the grid generator. The middle grid (level 2) has half the numbers of grid intervals in each of the three coordinates (r,η,θ) of those in level 1. The coarsest grid (level 3) has the same number of grid intervals in the r and directions as those of the middle grid, but half the number of grid intervals in the direction of those of the middle grid (i.e. one quarter the number of grid intervals of those of the finest grid). The user controls the number of relaxation iterations carried out on each grid by means of parameters in the input file FLOW.DAT. A batch of successive iterations on a particular level of grid is termed a step. A typical run commences with one or two coarse-grid steps, continues with a middle-grid step and concludes with one or more fine grid steps. Each step typically comprises one hundred or more iterations. Full convergence (when changes in the computed flow can no longer be detected) typically requires two thousand or more iterations. As well as specifying a particular number of iterations for a step, it is also possible to impose convergence criteria, and to make the termination of the run (or step) dependent on the satisfaction of these criteria.

 


Related Discussions:- flow solver

Finance choice, Question #1 Which of the following statements is false? ...

Question #1 Which of the following statements is false? A) For corporations, interest paid on its debt is a tax deductible expense. B) For corporations, dividend paid on its

Numericalle.., The Stefan-Boltzmann law can be employed to estimate the rat...

The Stefan-Boltzmann law can be employed to estimate the rate of radiation of energy H from a surface of copper sphere with radius = 0.15 ±0.01 m, as in H=AesT^4 where H is in watt

Capital Budgeting Project.., Assignment: You are interested in proposing a ...

Assignment: You are interested in proposing a new venture to the management of your company. Pertinent financial information is given below. BALANCE SHEET Cash 2,000,000 Accounts

Isdn, Explain the meaning of numbering and addressing in ISDN network.

Explain the meaning of numbering and addressing in ISDN network.

Gated pattern, Gated pattern is used to produce good casting. It is esse...

Gated pattern is used to produce good casting. It is essential to make sure that full supply of molten metal flow into every part of the mould. Provision for easy passage of the

300 X zoom lens, How to calculate the field of views

How to calculate the field of views

Show down any banking products and services offered, Question: a) E-b...

Question: a) E-banking is defined as the automated delivery of new and traditional banking products and services directly to customers through electronic, interactive commun

Fuel properties of aircraft, Fuel properties of Aircraft: EASE OF FLOW...

Fuel properties of Aircraft: EASE OF FLOW The ease of flow of a fuel is mainly a question of viscosity, but impurities such as ice, dust, wax, etc., may cause blockages in

Fire risk assessment in uk - fire protection engineering, Fire risk assessm...

Fire risk assessment in UK: In the UK FRAs are required by law in all commercial premises.  But the FRAs are not the same as described in NFPA 551.  The principles remain the

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd