Review of wind-tunnel freestream pressure fluctuations

Autor:	A. J. Laderman
Rok vydání:	1977
Předmět:	Fabrication Materials science Nozzle Flow (psychology) Rotational symmetry Aerospace Engineering Mechanical engineering Mechanics Laser law.invention law Torr Freestream Wind tunnel
Zdroj:	AIAA Journal. 15:605-608
ISSN:	1533-385X 0001-1452
DOI:	10.2514/3.7353
Popis:	(lib) For this flow condition, a saturated laser, K}^ , andpw>5 Tor r cm, i.e., f//2>5, the axisymmetric nozzle has an output power twice that of a two-dimensional nozzle with the same exit flow conditions and exit width w. In this pw regime, however, the chemical efficiency of the axisymmetric nozzle is 20% or less that of a premixed (pw = 0) laser. For pw = 1 Torr cm, i.e., fl/2 = l, the axisymmetric nozzle has about 30% greater output than the corresponding two-dimensional nozzle and a chemical efficiency equal to about 60% that of a premixed laser. For /?w /2
Databáze:	OpenAIRE
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