|
[Sponsors] |
How to split air blade in CFX Post without loosing accuracy |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
December 8, 2020, 05:32 |
How to split air blade in CFX Post without loosing accuracy
|
#1 |
New Member
Ivan Shvolko
Join Date: Dec 2020
Location: Minsk
Posts: 7
Rep Power: 5 |
Hello everyone!
I'm working on vertical axis wind turbine modeling (VAWT) in Ansys CFX. On my model turbine consists from 3 blades, everyone of them assigned as separate surface. I need to get power/force/etc., both on the entire blade and on its sections. For this I used the Iso Clip tool. Please see power by sections. (turbine located at 45 degree angle to the air flow) Left and right blade sides divided to 8 sections, as a result, we have 16 sections on entire blade. Power data for each section is located above corresponding section on attached screenshot. Total power from the left blade side: 111.0 [W] Total power from the right blade side: -16.9 [W] Total power: 94.1 [W] Let's check calculations: Iso clip entire blade (Blade length along Z axis from -2.37m to 2.37m) So we get power on entire blade, calculated from Iso clip: ~94.1 [W] If we use the same blade from mesh region. We get power on entire blade, calculated from mesh region: ~-50.6 [W] And what we have? If I use in my calculations geometry from Iso Clip tool, I have one result, if I use directly geometry from mesh region I have different result. Please advice me. Splitting blade by Iso Clip tool leads to loose accuracy? What else (instead Iso Clip) I should use to get data from different blade sections? (without reconfiguring, splitting each blade to separate surfaces and then resolving model) Thanks in advance. |
|
Tags |
blade sections, iso-clip |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
how to split a surface in CFX POST | mohammad | CFX | 10 | February 7, 2018 02:11 |
Error reading profile data in expression in cfx post | banu | CFX | 4 | March 27, 2015 09:03 |
Turbine Blade Flutter additional Varialbles display error in CFX post | sagarparikh31 | CFX | 8 | January 27, 2015 07:22 |
CFX Air conditioning Simulation_expression help!!!! Urgen!!! | yin2 | CFX | 6 | March 30, 2009 23:34 |
creating expresions in cfx build or cfx post | alex | CFX | 1 | August 22, 2002 13:01 |