Shock dynamics and shock collision in foam layered targets
نویسندگان
چکیده
Abstract We present an experimental study of the dynamics shocks generated by interaction a double-spot laser in different kinds targets: simple aluminum foils and foam–aluminum layered targets. The experiment was performed using Prague PALS iodine working at 0.44 μm wavelength irradiance few 10 15 W/cm 2 . Shock breakouts for pure Al foam-Al targets have been recorded time-resolved self-emission diagnostics. Experimental results compared with numerical simulations. originating from two spots move forward expand radially targets, finally colliding intermediate region producing very strong increase pressure. This is particularly clear case foam where we also observed delay shock breakout spatial redistribution influence layer doped high- Z (Au) nanoparticles on studied.
منابع مشابه
Shock wave focusing using geometrical shock dynamics
A finite-difference numerical method for geometrical shock dynamics has been developed based on the analogy between the nonlinear ray equations and the supersonic potential equation. The method has proven to be an efficient and inexpensive tool for approximately analyzing the focusing of weak shock waves, where complex nonlinear wave interactions occur over a large range of physical scales. The...
متن کاملLung Changes in Shock
In the very beginning stage of the lung changes are Perivascular, capillary wall edema, thickening of the interstitial, lymph and vascular dilatation. In the late stage of the shock the following changes will occuree Microthromboses of the lung capillary, polynulcear infiltration into the interstitial, the existence of polynuclear in the alveoli, proliferation of interstitial mesenchyma,...
متن کاملNew Blood Transfusions in Shock
In this article the differences between blood bank 8...'1d normal blood is shown. The danger of massive blood transfusion specially in shocked patient is discussed. The importance of warm blood, correction of acidosis with ventilation and bicarbonate, and the use of fresh plasma to compensate the reduction of coagulation factors are mentioned. The value of acidphosphaite-dexterose (APD) as sto...
متن کاملShock Waves in Gas Dynamics
Shock wave theory was studied in literature by many authors. This article presents a survey with references about various topics related to shock waves: Hyperbolic conservation laws, Well-posedness theory, Compactness theory, Shock and reaction-di¤usion wave, The CJ and ZND theory, Existence of detonation in Majdas model, Premixed laminar ame, Multidimensional gas ows, Multidimensional Riema...
متن کاملEquation-of-state studies using laser-driven shock wave propagation through layered foil targets
Results of laser-driven shock wave experiments for equation-of-state (EOS) studies of gold metal are presented. A Nd : YAG laser chain (2 Joule, 1.06 μm wavelength, 200 ps pulse FWHM) is used for generating shocks in the planar Al foils and Al + Au layered targets. EOS of gold in the pressure range of 9– 13 Mbar is obtained using impedance-matching technique. Numerical simulations performed usi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: High Power Laser Science and Engineering
سال: 2021
ISSN: ['2095-4719', '2052-3289']
DOI: https://doi.org/10.1017/hpl.2021.33