|
[Sponsors] |
October 22, 2004, 06:37 |
static pressure from mass flow rate
|
#1 |
Guest
Posts: n/a
|
it is stated in fluent user guide that for target mass flow rate it finds the mean static pressure and then finds mass flow rate and then subtract from target mass flow rate and finds again static pressure
i want to know by whcih equation it finds that static pressure , coz we dont know the mach number , total pressure at outlet etc regards |
|
October 22, 2004, 08:44 |
Re: static pressure from mass flow rate
|
#2 |
Guest
Posts: n/a
|
Quote from method 2: Second Step: use the required mass flow rate (the target mass flow rate), the current computed mass flow rate, and mean static pressure in ---Bernoulli's equation ---- to obtain a new mean static pressure value, applying under-relaxation to keep the solution stable.
And it is almost the same for method 1 since mass-flow rate is known for the previous iteration |
|
October 22, 2004, 08:52 |
Re: static pressure from mass flow rate
|
#3 |
Guest
Posts: n/a
|
but bernouli equaton, where does it contain mass flow rate term
confused plz help |
|
October 22, 2004, 09:49 |
Re: static pressure from mass flow rate
|
#4 |
Guest
Posts: n/a
|
G {mass-flow rate }= B {constant, properties}* P_tot * function (P_tot, P_stat) * Area / sqrt ( R_gas * T_tot)
|
|
October 22, 2004, 10:23 |
Re: static pressure from mass flow rate
|
#5 |
Guest
Posts: n/a
|
thanks i will try it and let u know
regards |
|
October 22, 2004, 10:37 |
Re: static pressure from mass flow rate
|
#6 |
Guest
Posts: n/a
|
wat is B and how we calculate p total
can u explain this formula or give book name i would be thanful to u |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
UDF to measure Mass Flow Rate | a.lynchy | Fluent UDF and Scheme Programming | 31 | October 4, 2018 15:10 |
Mass Flow Rate is not converging | destgir448 | CFX | 5 | December 11, 2010 06:55 |
static pressure from mass flow rate | SAM | Main CFD Forum | 4 | October 27, 2004 14:15 |
Determine mass flow rate along flow path | Atit Koonsrisuk | CFX | 2 | October 5, 2003 05:47 |
Mass Flow Inlet | Pravir Kumar Rai | FLUENT | 0 | February 19, 2003 15:03 |