|
[Sponsors] |
what is the significant of stagnation pressure loss in fuel mixing after cavity |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
November 13, 2021, 22:21 |
what is the significant of stagnation pressure loss in fuel mixing after cavity
|
#1 |
New Member
Ahmed Kamal Alnemr
Join Date: Apr 2020
Posts: 8
Rep Power: 6 |
Hello,..
I am reading a scientific paper about the configuration of supersonic combustion. the system is consisted of cavity and grooves before the cavity. in the results of this study, the stagnation pressure loss occurred downstream the grooves. therefore I want to know what is its physical meaning of this ? |
|
November 13, 2021, 22:53 |
|
#2 |
Senior Member
Lucky
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 5,762
Rep Power: 66 |
Stagnation pressure is the sum of static pressure and dynamic pressure. It is a measure of total available momentum in a moving fluid. Fluids can exchange static and dynamic pressure reversibly. Stagnation pressure loss therefore means an irrecoverable pressure loss occurred. The location of where this decrease in stagnation pressure occurs tells you where are the irreversibilities in your flow.
|
|
November 15, 2021, 07:35 |
|
#3 | |
New Member
Ahmed Kamal Alnemr
Join Date: Apr 2020
Posts: 8
Rep Power: 6 |
Quote:
|
||
November 16, 2021, 02:52 |
|
#4 |
Senior Member
|
As indicated by LuckyTran, Stagnation pressure is the total quantity of energy in your fluid in terms of static and dynamic pressure.
In reversible process, static pressure is converted to dynamic pressure or vice versa according to Bernoulli principle. So total pressure remains same. Total pressure loss occurs due to various reasons. One can be due to friction effects on surface of some solid body. It can also occur in sudden mixing. |
|
November 16, 2021, 04:29 |
|
#5 | |
New Member
Ahmed Kamal Alnemr
Join Date: Apr 2020
Posts: 8
Rep Power: 6 |
Quote:
|
||
Tags |
combustion modeling, reactive flow, supersonic.combustion |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Pressure drop across a converging nozzle | mjkey | CFX | 16 | July 17, 2019 14:22 |
CFX Solver stopped with error when requested for backup during solver running | Mfaizan | CFX | 40 | May 13, 2016 07:50 |
static vs. total pressure | auf dem feld | FLUENT | 17 | February 26, 2016 14:04 |
Pressure loss Velocity coupling | CFXMUFFIN | CFX | 1 | February 6, 2016 05:43 |
Outlet pressure | aja1345 | FLUENT | 5 | August 18, 2015 12:02 |