Adjoint based pressure determination from PIV-data – Validation with synthetic PIV measurements –
نویسندگان
چکیده
The aim of the study is the application and validation of an adjoint based data assimilation method for the determination of timedependent pressure fields from velocity data obtained by particle image velocimetry (PIV). The method is based on the full compressible Navier-Stokes equations. No additional constraints like incompressibility or adiabatic flow conditions are necessary. The technique is suitable for planar and tomographic PIV as well as for free and bounded flows. The study focuses on the description of the data assimilation technique with respect to the intended application. Furthermore the method is validated by numerical experiments and synthetic PIV measurements.
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