International Science Community Association Research Journal of Recent Sciences 2277 - 2502 1 1 2012 January 2 Influence of Internal Waves on Underwater Acoustic Propagation 73 76 EN Gwal A.K. 1 Space Science Laboratory, Department of Physics Barkatullah University Bhopal-462026, INDIA Jain SantoshKumar 2 Panda Gopal 3 Gujar Y.S. 4 Raghuwanshi S. 5 S.K. Vijay 6 Bora Abhijit 1 Tezpur University, Napaam, Sonitpur district, Assam, INDIA Parikh AnkitaN. 1 Department of Zoology, Faculty of Science, The Maharaja Sayajirao University of Baroda, Varodara.390 002, Gujarat, INDIA Mankodi P.C. 2 SenthilKumar A.P. 1 Department of Mechanical Engineering PSG College of Technology, Coimbatore, INDIA Karthikeyan P. 2 Department of Automobile Engineering PSG College of Technology, Coimbatore, INDIA V. PrabhuRaja 3 M. Ramu 4 Somasundharam S. 5 Vasudevan V. 6 Selvakumar B. 1 Department of Mechanical Engineering PSG College of Technology, Coimbatore, INDIA V. PrabhuRaja 2 Department of Automobile Engineering PSG College of Technology, Coimbatore, INDIA R. NandhaKumar 3 SenthilKumar A.P. 4 M.S. Vignesh 5 G.R. VivekSharma 6 Karthikeyan P. 7 Kumar Pradeep 1 Department of Physics, K G K (P G) College, Moradabad 244 001, Uttar Pradesh, INDIA Singh Bhupendra 2 Department of Physics, Hindu College, Moradabad 244 001, Uttar Pradesh, INDIA Kumar Anil 3 Ezenwa I.A. 1 Department of Industrial Physics, Anambra State University Uli, NIGERIA Patil M.M. 1 Dept. of Processing and food Eng., College of Technology and Eng. Maharana Pratap Uni. of Agriculture and Tech. Udaipur, INDIA Kalse S.B. 2 Jain S.K. 3 Pathak Sunil 1 Swami Vivekanand College of Engineering Indore, MP, INDIA Hashemi SeyedAhmadReza 1 South of Iran aquaculture fishery research center, Ahwaz, IRAN Gholamreza Eskandary 2 Hoshang Ansary 3 Dave V.P. 1 Dept. of Experimental Medicine and Biotechnology, P. G. Institute of Medical Education and Research, Chandigarh, INDIA Kaul D. 2 Dept. of Cardiology, P. G. Institute of Medical Education and Research, Chandigarh, INDIA Sharma Y.P. 3 Hemmati Farshid 1 Shoushtar Branch, Islamic Azad University, Shoushtar, IRAN > Short Communication 2011 9 28 2012 January 2 The harmonic excitation is taken imperfect, i.e., with a random phase modulation due to Gaussian white noise, accounting for both chaotic and stochastic behavior. Simulated turbulence is represented using the potential theory line vortex approach. Simulations are conducted for long range propagation, 1000km, containing internal wave fields with added deterministic effects and are compared to those fields with non-deterministic properties. These results show that long range acoustic propagation has a very strong dependence on the intensity of deterministic fluctuations. Numerical analysis for short range propagation, 10km, was constructed for sound passage through the following perturbation scenarios: simulated turbulence, an internal wave field, and a field of internal waves and simulated turbulence combined. Copyright@ International Science Community Association