The influence of thermodynamic gas parameters on laser-induced bubble dynamics in water |
| |
| Authors: | Bing Han Bo Yang Rui Zhao Hong-Chao Zhang Zhong-Hua Shen Jian Lu Xiao-Wu Ni |
| |
| Institution: | 1. Science and Technology on Power Beam Processes Laboratory, Beijing 100024, PR China;2. Beijing Aeronautical Manufacturing Technology Research Institute, Dongjunzhuang Road #1, Beijing 100024, PR China;3. Aviation Industry Corporation of China, Beijing Institute of Aeronautical Materials, Beijing 100095, PR China;4. Air Force Military Representative Office in Beijing, Beijing 100024, PR China;5. Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan 250022, Shandong, PR China;1. Department of Mechanical Eng., University of Tehran, Tehran, Iran;2. Member of Center of Excellence in Design and Optimization of Energy Systems (CEDOES), Department of Mechanical Eng., University of Tehran, Tehran, Iran;1. Division of Gastroenterology, Department of Medicine, Duke University Medical Center, Durham, NC, USA;2. Departamento de Clínica Médica, Laboratório de Doenças Infecciosas e Parasitárias, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil;3. Immunopathogesis Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA;4. Liver Regeneration and Repair Research Group, Institute of Hepatology, Foundation for Liver Research, London, UK;5. Division of Gastroenterology and Hepatology, Medical University of South Carolina, Charleston, SC, USA;6. Section of Gastroenterology, Ralph H Johnson Veteran Affairs Medical Center, Charleston, SC, USA;7. Núcleo de Doenças Infecciosas, Universidade Federal do Espírito Santo, Vitória, ES, Brazil;8. Centers for Disease Control and Prevention, Atlanta, GA, USA;1. National Core Research Center for Hybrid Materials Solution, Pusan National University, San 30 Jangjeon-dong, Geumjeong-gu, Busan 609735, Republic of Korea;2. Department of Environmental Engineering, Chungbuk National University, 52 Naesudong-Ro, Heungdeok-Gu, Cheongju 361-763, Republic of Korea;3. Department of Environmental Chemistry, Korea Polytachnic VII Collage, Changwon 641-772, Republic of Korea;4. Facility Division, Pusan National University, San 30, Jangjeon-Dong, Busan 609-735, Republic of Korea;5. Department of Environmental Engineering, Pusan National University, San 30 Jangjeon-Dong, Geumjeong-Gu, Busan 609735, Republic of Korea |
| |
| Abstract: | The oscillating properties of laser-induced cavitation bubbles in water are investigated by means of a fiber-optic sensor based on optical beam deflection. The experimental results show two important points. One is that the smaller the bubble radius the more quickly the bubble surface moves. Thus, the variations of the temperature and the pressure inside the bubble will be close to those of an adiabatic process. The other is that the high-energy vapor inside the newborn bubble diffuses and coagulates rapidly through violent expansion and thermal conduction. Thus, the gas content of the bubble reduces significantly in the first oscillation. Numerical simulation is made for the bubble model with consideration of liquid viscosity, surface tension, and gas content. Through modification of the polytropic index and the gas content parameter, two parameters of this model, the numerical results fit the experimental results well. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
