公开(公告)号：US12121889B2

公开(公告)日：2024-10-22

申请号：US17502517

申请日：2021-10-15

Applicant: CFD RESEARCH CORPORATION ,  Garry Lynn Freeman, Jr.

Inventor： Joseph Roger Herdy, Jr. ,  Garry Lynn Freeman, Jr.

IPC: G01M9/04 ,  B01J4/00 ,  B01J6/00 ,  C01B13/02 ,  C01B21/02

CPC classification number: B01J4/002 ,  B01J6/00 ,  C01B13/0203 ,  C01B21/02 ,  G01M9/04 ,  B01J2204/007

Abstract: A variable 3D CD nozzle includes: a flexible body defining a flow path having an inlet extending through a narrowed throat to an expanded outlet, wherein the flexible body comprises a plurality of flexible members movably interconnected together; and at least one means for changing a shape of the flexible body to change a dimension or location of the throat plane relative to at least one of the inlet plane or outlet plane. A method of changing airflow in a nozzle includes operating at least one means for changing the shape of the flexible nozzle body to change the dimension or the location of the throat plane. A method of testing an object includes placing a test object in the test region of the test cell and passing a test gas from the outlet opening of the nozzle onto the test object.