The focused shock technique for producing transient water jets

• This paper presents experimental work on a new type of transient water jet device. A spark discharge at one focus of a two-dimensional, elliptical, water filled cavity creates a shock wave which converges towards the other focus. There it enters an axisymmetric duct and is converted into a plane shock wave which moves out from the plane of the ellipse. When the plane wave reaches the free surface at the front of the nozzle a water jet is emitted. The Schliereren technique is used to study the process of wave convergence in the cavity. Resulting jet speeds form a simple non-optimized device are also measured. The fundamental idea appears to work and the results are promising, but difficulties remain.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Maskinteknik -- Strömningsmekanik och akustik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Mechanical Engineering -- Fluid Mechanics and Acoustics (hsv//eng)

Nyckelord

Strömningslära

Fluid Mechanics

Publikations- och innehållstyp

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