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Non-spherical Shock Waves in Liquids

#1393


Research of Generation Mechanism and Focusing Process of Non-One-Dimensional Shock Waves in Liquids

Tech Area / Field

  • PHY-NGD/Fluid Mechanics and Gas Dynamics/Physics

Status
3 Approved without Funding

Registration date
30.11.1998

Leading Institute
Institute of General Physics named after A.M. Prokhorov RAS, Russia, Moscow

Supporting institutes

  • VNIIEF, Russia, N. Novgorod reg., Sarov

Collaborators

  • Splits Technology Limited Company, UK, Edinburgh\nPaptin Foam Co., Ltd., Korea, Kwandju Gun Kyungki

Project summary

Project Objectives

The aim of this Project is to develop a new constructions of a low-threshold pulse-periodic discharge systems of different configurations (strip-line, ring-shape, spiral-shape, etc.) adapted specially for operation in the liquid medium.

With help of these systems experimental investigations of problem of axis-symmetric non-one-dimensional strong sound waves convergence in the liquids as well as problem of their focusing and cumulating are pending.

This Project’s fulfillment permits us to propose of methods of combined action (force, radiative, etc.) upon the mediums for research of their nonlinear properties and their parameters modification.

Technical Approach

Proposed technical solution of electric-discharge devices are based on the application of multielectrode systems with «slipping surface discharge» in the vacuum and in the gases successfully employed for handling of some physical (gasdynamic) and applied (plasma-chemical) problems in the GPI.

Essential properties of such a discharges are as following: relatively low break-down threshold value, extremely high velocity of discharge propagation along the given direction and possibility to distribute of discharge gaps on the surfaces with different configurations. All it allows to expect for high efficiency receiving in a combined action (strong light and force) on a medium.

Expected Results


1. Development of a low-threshold multielectrode systems arranged for function in the liquids and having such a distinguishing properties like long service life and high efficiency.
2. Acquisition of a physical picture of electric-discharge processes evolving in the proposed systems.
3. Determination of strong sound axis-symmetric non-one-dimensional waves convergence low.
4. Development of theory and receiving results of numerical modeling of gas-discharge processes evolving in the course of ring electric discharge operation.

Work Position

Experimental part of this work will be done in the Plasma Physics Division of the General Physics Institute of Russian Academy of Sciences with application of this Division setups. The main theoretical research will be done in the Russian Federal Center - All - Russian - Scientific - Research Institute of Experimental Physics (RFNC-VNIIEF).

Research in the framework of this Project is supported by Scientific Utilization, Inc., Decatur, AL, USA


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