Using PIV to determine relative pressures in a stenotic phantom under steady flow based on the Pressure-Poisson equation

2010 ◽  
Author(s):  
I Khodarahmi ◽  
M Shakeri ◽  
M K Sharp ◽  
A A Amini
Keyword(s):  
Steady Flow ◽  
Poisson Equation ◽  
Pressure Poisson Equation

Determination of the Pressure Field Using Three-Dimensional, Volumetric Velocity Measurements

2016 ◽  
Vol 138 (8) ◽  
Author(s):  
Hansheng Pan ◽  
Sheila H. Williams ◽  
Paul S. Krueger
Keyword(s):  
Poisson Equation ◽  
Temporal Resolution ◽  
Pressure Field ◽  
Three Dimensional ◽  
Vortical Flow ◽  
Flow Conditions ◽  
Velocity Measurements ◽  
Pressure Poisson Equation ◽  
Computational Fluid Dynamics Cfd

Methods to determine the pressure field of vortical flow from three-dimensional (3D) volumetric velocity measurements (e.g., from a TSI V3VTM system) are discussed. The boundary pressure was determined where necessary using the unsteady Bernoulli equation for both line integration and pressure Poisson equation methods. Error analysis using computational fluid dynamics (CFD) data was conducted to investigate the effects of spatial resolution, temporal resolution, and velocity error levels. The line integration method was more sensitive to temporal resolution, while the pressure Poisson equation method was more sensitive to boundary flow conditions. The latter was generally more suitable for V3VTM velocity measurements.

Implementation and performance of iterative substructure method for pressure Poisson equation

2014 ◽  
Vol 2014.27 (0) ◽  
pp. 671-673
Author(s):  
Yuichi MOTOHASHI ◽  
Kohei MUROTANI ◽  
Kazuya SHIBATA ◽  
Seiichi KOSHIZUKA ◽  
Masao OGINO ◽  
...  
Keyword(s):  
Poisson Equation ◽  
Pressure Poisson Equation ◽  
Substructure Method ◽  
And Performance
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