Fluid Mechanics

Fluid mechanics is the study of fluids and the forces on them. Fluid mechanics can be divided into fluid statics, the study of fluids at rest;... | Contact experts in Fluid Mechanics to get answers

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Questions related to Fluid Mechanics

Which parameters influence the heat rate of gas turbines and how ?

24 November 2017 4,476 5 View

Which turbulence model shall I use?

Hello guys Project overview: I have a coil pipe with water passing through it, and all submerged into a water tank with constant temp of 60 degrees. Water temp in the coil is 10 degrees, I am...

25 October 2017 175 2 View

Modeling air-flow parameters in hydraulic jump?

Dear all Is there any software for modeling air-flow properties in hydraulic jump process? At least could be basic parameters including void fraction and bubble count rate or even turbulent...

17 October 2017 4,033 4 View

There is a general analytic expression of solutions for generalized Tricomi PDE?

In a 2010 paper Construction of classic exact solutions for Tricomi equation I have proposed a method for generalized Tricomi pde uxx + a(x)uyy = 0 construction of analytical solutions. But there...

11 October 2017 8,524 4 View

Can you share Fluid Mechanics ( UG Course) assignment?

I am looking for Fluid Mechanics assignments designed based on Real Life situation.

20 September 2017 7,040 0 View

Which type of instability?

Hello all, I wish to have some information on type of instability between 2 immiscible fluids. Kelvin-Helmholtz instability ( as per what I understand) is observed in case of 2 immiscible fluids...

18 August 2017 9,561 7 View

How can i adopt Sankey and Grassmann diagrams to depict exergetic asessment of biodiesel reactor and CHP plant?

Dear Researchers, My researcher group and students are at edge of adopting exergetic tool to determine ineffectiveness in parts of bioreactor and might result in employing Sankey and Grassmann...

04 August 2017 8,157 1 View

How to find depth averaged flow velocity in water flow?

give the method or formula to find the depth -averaged water flow velocity in a rectangular open channel.

01 August 2017 7,425 1 View

How will i conduct kinematic mechanism of a biodiesel reactor?

Dear Researcher, Somebody to explain kinetic study of hydrodynamic reactor utilized to produce biodiesel?

28 July 2017 7,650 4 View

Comparison of stream function contours with a paper?

Hello I did run for Buoyancy square cavity flow heated from bottom wall I got good results about stream function contour and temperature but the problem my results for stream function were...

26 July 2017 2,042 18 View

Regarding the flowrate using Harvard apparatus syringe pump?

I am using syringe pump with the flowrate set to 5ul/min. When I flow water which is in plastic syringe through a 1mm 0.5mm tube and collect the liquid for 10min. Then I see that ~50ul liquid is...

26 July 2017 2,699 2 View

What formula is used to calculate Nusselt number in HTRI?

Our team is working on the designing of heat exchanger and we find out that the flow regime for our case is Laminar. As per D. Q. kern pg 103. the Nuseelt number for laminar flow does not depends...

25 July 2017 4,464 12 View

How one can analytically calculate the temperature of the wall in a micro channel with thermal slip ?

I work on the flow of a gas in a micro channel, the goal is to compare between the analytical solution and the digital one for the temperature fields, the problem is that analytically I have that...

18 July 2017 1,101 4 View

How to handle the errors in Comsol Multiphysics, in particular, Undefined variable. I'm modeling slip flow of gas in the vacuum chamber

Hi! Please, anyone, help me!!!! I'm totally new to Comsol, but my task is to model the flow of air in a chamber of the mass spectrometer connected to the second chamber through the small orifice....

14 July 2017 572 5 View

What should be boundary conditions for flow of water in penstock bifurcation pipe?

I am modelling the wye branch in ANSYS and at the inlet I am giving the mass flow rate and outlet is set as pressure outlet.Do I need to add the pressure developed due to the height of the pipe...

13 July 2017 9,523 2 View

What are applications of low-Mach number combustion?

In CFD of reacting flows, the low-Mach number formulation is often used in LES or DNS as the time-step requirement is much more relaxed compared to the full compressible formulation. In turn, this...

11 July 2017 3,035 10 View

How to compute liquid-liquid diffusion coefficient by experiment?

I am interested in experimental measurement of diffusivity of tea brew in water? Could you please explain diffusion cell apparatus for measuring liquid diffusivity.

10 July 2017 2,845 5 View

Comsol 5.1, microwave doppler shift of flowing medium

I am trying to model a Doppler shift induced in a microwave signal by a flowing liquid in order to measure the flow speeds. I currently have 2 problems. The first is getting the plane wave to be...

10 July 2017 2,515 4 View

How to save average void fraction of solids along the bed height in simulation of fluidized beds using TFM Eulerian-Eulerian -Fluent?

" I am new to FLUENT, I need the averaged solid phase volume fraction, so that I can save the information about solid phase fraction per time step and write the data to file " Thanks in advance...

12 June 2017 6,117 5 View

I need one who would write an introduction to an article in Single non spherical particle motion (low Reynolds)

I need one researcher to participate as co-author in this article. I wish one who would write a sensitive introduction to the subject for non-spherical particles with references. In a nutshell a...

09 June 2017 9,043 5 View

What does fluid velocity profile through porous media for two-phase-flow look like?

I know velocity profile for a single-phase-flow through porous media.but what about different two-phase flow regimes (trickle flow, pulse flow, upward flow, etc) through porous media?

29 May 2017 7,623 5 View

What will be the effect of the positions of inlet and outlet on hydrodynamics of a finite length rectangular pipe

The inlet and outlet may be the same face of the rectangular pipe or may be on different directions. Assume that entry length has been taken care. If someone has a simulation of the velocity...

29 May 2017 7,808 4 View

At what Forchheimer number does flow (in a porous media) transition from Forchheimer like to fully turbulent? (Literature references appreciated)

Based on various sources, [for example Porous Media Transport Phenomena Edition 1, Chapter 5 - Fluid Motion in Porous Media, pg116] the transition of fluid flow though the various regimes is...

23 May 2017 3,937 4 View

What is the best description of the mixing length over large scale roughness?

The mixing length(or the eddy size) is proportional to distance from wall in the logarithmic region. whearas near the wall with large scale roughness, it is considered to be controlled by the...

17 May 2017 224 0 View

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