<HTML><BODY><span style="font-family: Arial, Tahoma, Verdana, sans-serif;" data-mce-style="font-family: Arial, Tahoma, Verdana, sans-serif;">Hi, Neks!</span><br style="font-family: Arial, Tahoma, Verdana, sans-serif;" data-mce-style="font-family: Arial, Tahoma, Verdana, sans-serif;"><br style="font-family: Arial, Tahoma, Verdana, sans-serif;" data-mce-style="font-family: Arial, Tahoma, Verdana, sans-serif;"><span style="font-family: Arial, Tahoma, Verdana, sans-serif;" data-mce-style="font-family: Arial, Tahoma, Verdana, sans-serif;">I am working with a complex geometry which was built in gambit. I have a velocity fields for my grid. But I want to interpolate these velocity fields to a new grid. The old grid was changed without moving the geometry parameters, I just changed the position of the computational nodes and reduced their number (see pictures old_grid and new_grid *). I</span><span style="font-family: Arial, Tahoma, Verdana, sans-serif;">nterpolation ends as usual. The velocity field is interpolated perfectly, but the pressure field is not interpolated correctly (see pictures pressure_field_before_interpolation and pressure_field_after_interpolation **).</span><p style="font-family: Arial, Tahoma, Verdana, sans-serif;" data-mce-style="font-family: Arial, Tahoma, Verdana, sans-serif;">Tell me, what is my mistake? Is it possible to interpolate from a larger number of nodes to a smaller number of nodes?</p><span style="font-family: Arial, Tahoma, Verdana, sans-serif;" data-mce-style="font-family: Arial, Tahoma, Verdana, sans-serif;">*</span><a style="color: #0077cc;font-family: Arial, Tahoma, Verdana, sans-serif;" href="https://drive.google.com/open?id=1DmsGxc_WR3_aJW0UpLHkcxAVzt5BzABK" rel=" noopener noreferrer" target="_blank" data-mce-href="https://drive.google.com/open?id=1DmsGxc_WR3_aJW0UpLHkcxAVzt5BzABK" data-mce-style="color: #0077cc; font-family: Arial, Tahoma, Verdana, sans-serif;">https://drive.google.com/open?id=1DmsGxc_WR3_aJW0UpLHkcxAVzt5BzABK</a><br style="font-family: Arial, Tahoma, Verdana, sans-serif;" data-mce-style="font-family: Arial, Tahoma, Verdana, sans-serif;"><span style="font-family: Arial, Tahoma, Verdana, sans-serif;" data-mce-style="font-family: Arial, Tahoma, Verdana, sans-serif;"> </span><a style="color: #0077cc;font-family: Arial, Tahoma, Verdana, sans-serif;" href="https://drive.google.com/open?id=1RbSsODF49DqGmyHnpz0Bktp-HDjW7j0w" rel=" noopener noreferrer" target="_blank" data-mce-href="https://drive.google.com/open?id=1RbSsODF49DqGmyHnpz0Bktp-HDjW7j0w" data-mce-style="color: #0077cc; font-family: Arial, Tahoma, Verdana, sans-serif;">https://drive.google.com/open?id=1RbSsODF49DqGmyHnpz0Bktp-HDjW7j0w</a><span style="font-family: Arial, Tahoma, Verdana, sans-serif;" data-mce-style="font-family: Arial, Tahoma, Verdana, sans-serif;"> </span><br style="font-family: Arial, Tahoma, Verdana, sans-serif;" data-mce-style="font-family: Arial, Tahoma, Verdana, sans-serif;"><span style="font-family: Arial, Tahoma, Verdana, sans-serif;" data-mce-style="font-family: Arial, Tahoma, Verdana, sans-serif;">**</span><a style="color: #0077cc;font-family: Arial, Tahoma, Verdana, sans-serif;" href="https://drive.google.com/open?id=16Ueepa1lo_aHjya3BnLn8fHI3ek0kvo8" rel=" noopener noreferrer" target="_blank" data-mce-href="https://drive.google.com/open?id=16Ueepa1lo_aHjya3BnLn8fHI3ek0kvo8" data-mce-style="color: #0077cc; font-family: Arial, Tahoma, Verdana, sans-serif;">https://drive.google.com/open?id=16Ueepa1lo_aHjya3BnLn8fHI3ek0kvo8</a><span style="font-family: Arial, Tahoma, Verdana, sans-serif;" data-mce-style="font-family: Arial, Tahoma, Verdana, sans-serif;"> </span><br style="font-family: Arial, Tahoma, Verdana, sans-serif;" data-mce-style="font-family: Arial, Tahoma, Verdana, sans-serif;"><span style="font-family: Arial, Tahoma, Verdana, sans-serif;" data-mce-style="font-family: Arial, Tahoma, Verdana, sans-serif;"> </span><a style="color: #0077cc; font-family: Arial, Tahoma, Verdana, sans-serif;" href="https://drive.google.com/open?id=1CNiN8MdE7tNeu8T4jBtZBtMSX5dlXzNM" rel=" noopener noreferrer" target="_blank" data-snippet-id="71c6e6ad-8376-6485-a3e9-2a0fd3371d6" data-mce-href="https://drive.google.com/open?id=1CNiN8MdE7tNeu8T4jBtZBtMSX5dlXzNM" data-mce-style="color: #0077cc; font-family: Arial, Tahoma, Verdana, sans-serif;">https://drive.google.com/open?id=1CNiN8MdE7tNeu8T4jBtZBtMSX5dlXzNM</a><br style="font-family: Arial, Tahoma, Verdana, sans-serif;" data-mce-style="font-family: Arial, Tahoma, Verdana, sans-serif;"><br style="font-family: Arial, Tahoma, Verdana, sans-serif;" data-mce-style="font-family: Arial, Tahoma, Verdana, sans-serif;"><span style="font-family: Arial, Tahoma, Verdana, sans-serif;" data-mce-style="font-family: Arial, Tahoma, Verdana, sans-serif;">Best regards,</span><br style="font-family: Arial, Tahoma, Verdana, sans-serif;" data-mce-style="font-family: Arial, Tahoma, Verdana, sans-serif;"><span style="font-family: Arial, Tahoma, Verdana, sans-serif;" data-mce-style="font-family: Arial, Tahoma, Verdana, sans-serif;">Elizabeth</span><br></BODY></HTML>