|
[Sponsors] |
difference between standard calculation and hybrid calculation |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
February 15, 2017, 11:52 |
difference between standard calculation and hybrid calculation
|
#1 |
Member
kaouachi anouar
Join Date: Jul 2016
Posts: 66
Rep Power: 9 |
hello please what's the difference between standard calculation and hybrid calculation
|
|
February 15, 2017, 14:43 |
|
#2 |
Senior Member
Lucky
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 5,681
Rep Power: 66 |
I think you are referring to initialization.
Standard initialization allows you specify all the variables directly as initial guesses. Fluent is setup to allow you to easily specify the initial x-velocity, y-velocity, z-velocity, temperature, pressure, etc. all as constant fields over the whole domain. To specify non-constant fields requires some more work, but you can imagine specifying an arbitrary spatial distribution of all variables, everywhere as an initial guess. Hybrid initialization is a bit more complex. It uses the boundary conditions and then solves an Euler problem. It uses the solution to this Euler problem as the initial guess. In standard initialization you must provide the initial guess. In hybrid, Fluent guesses them for you. One is not better than the other and your mileage may vary. |
|
June 25, 2020, 01:19 |
Thermal management of Li ion Battery
|
#4 |
New Member
ABHISHEK
Join Date: Jun 2020
Posts: 2
Rep Power: 0 |
I am giving convection boundary conditions--in which I gave "free stream temp" 273k but in solution it started with 300k why it is so??
Help me.. |
|
May 10, 2022, 13:40 |
|
#5 |
New Member
Ayodeji Adeniran
Join Date: Oct 2021
Posts: 2
Rep Power: 0 |
This is because (1) your probelme probably initialized at 300K- check your soultion initialization. or (2) there was back flow at the initial time and your backflow temperature is set at 300K.-change your back flow temperature or remesh to prevent backflow.
|
|
May 10, 2022, 13:42 |
|
#6 |
New Member
Ayodeji Adeniran
Join Date: Oct 2021
Posts: 2
Rep Power: 0 |
This is because (1) your probelme probably initialized at 300K- check your soultion initialization. or (2) there was back flow at the initial time and your backflow temperature is set at 300K.-change your back flow temperature or remesh to prevent backflow
|
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
ATTENTION! Reliability problems in CFX 5.7 | Joseph | CFX | 14 | April 20, 2010 15:45 |