I want to use a second order implicit time integration scheme to solve the advection-convection equation over relatively large time steps. I found two options : Crank–Nicolson and the second order backward differential formula (cf [link]). For the Crank–Nicolson numerical scheme, a low CFL number is not... more »
Release 3.38.2 1. Fixed discarge coefficient standard setting for flow nozzles. Program logic did not allow proper setting for discharge coefficient for ASME standard flow nozzles and ISA flow nozzles. This caused the program to not calculate the discharge coefficient and not solve for a proper... more »
Hi There. I am trying to write a simple code in MATLAB for an air-air shock tube using Godunov's method and the HLL Flux. I am using the ideal gas equation of state, and also assuming constant specific heats so we have P=RT*rho and e=(5/2)RT. My present code is having problems and I think it may be me... more »
Faraday's Law correct? ? -- The scientific concept of the Declaration gave me the strength I split my guts of a long-premeditated Potential is cutting A. Alternator B. DC (commutator) Generators C. unipolar DC - D. No change to the single-pole DC motor unit [link]... more »
I am learning CFD at home and I would like to save the output of my simple simulations and visualize them. Can you please suggest a file format that is easy to develop with and an easy to use viewer ? I do not need something very complex. I just need to be able to save and to view 2D and 3D fields created from a C++ program.... more »
OT as it isn't CFD, but I am sure that folks on this list have experience with thermal management issues. I am looking to specify a finish for a forced convection bonded fin heatsink. All of the CFD work was done on FloWorks with raw aluminum characteristics. Now the question is: Which finish degrades performance the least?... more »
Formulated by Clay Mathematics Institute the sixth Millennium Problems about existence and smoothness of solutions of the Navier – Stokes equations periodically was discussed at numerous forums ([link] Society/Science/m.112524.html) . On recognition of some commentators... more »
Hi group, I would like to do a basic calculation of the pressure that our local Village idiots would have had to apply to the sewer line on our street in order for it to geyser a foot higher than our trap opening and pumping 150+ gallons of raw sewage into our basement ( I realize the total volume is not pertinent to the calculation, I just add it as... more »
Do you perform, maintain, or review/check orifice calculations for your production plant's orifice flow meters or for process plant instrumentation design engineering for your engineering firm? Then you must try the latest release of FE-Sizer - Orifice Flow Meter Sizing Software...the orifice meter sizing software of choice for many flow meter fabricators.... more »
Computational fluid dynamics.
