Measurement system for a wind tunnel, wind tunnel and methods for optimizing a wind tunnel

Abstract

The presented invention relates to a measuring system (100) for a wind tunnel (200), wherein the measuring system (100) comprises: - at least one differential pressure sensor (101), - a plurality of pressure measuring lines (103, 105), - a scale (209), - a blower (201), - a computing unit (111), wherein the at least one differential pressure sensor (101) is to be connected via a first pressure measuring line (105) of the plurality of pressure measuring lines (103, 105) to a pressure measuring point in the measuring area (205) of the wind tunnel (200) and via a second pressure measuring line (103) of the plurality of pressure measuring lines (103, 105) to a pressure measuring point in a pre-chamber (203) of the wind tunnel (200), wherein at least one pressure measuring line (103, 105) of the plurality of pressure measuring lines (103, 105) main line (107) and at least one flow equalization element (109) arranged in the main line (107), wherein the at least one flow equalization element (109) is configured toto equalize an airflow flowing through the at least one pressure measuring line (103, 105), and wherein the computing unit (111) is configured to adjust the blower depending on pressure values ​​determined by the at least one differential pressure sensor (101) and, as a result, to minimize a variance of a resistance coefficient calculated on the basis of weight values ​​determined by means of the scale.

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