The present work has been done numerically to simulate the combustion instabilities in solid rocket motors. Hot flow with the flow of oxidizer and fuel injection is considered in this investigation. The flow is assumed to be steady in the numerical simulations. It must be clearly understood that the flow-acoustic coupling which is of primary interest in the context of rocket motor instabilities cannot be simulated entirely by incompressible flow calculations alone. Numerical calculations have been carried out to determine the combustion instability, temperature, species and specific heat with the effect of varying the velocity. The combination of the above entities in the Solid Rocket Motor causes some severe damage in the combustion chamber. By identifying the source, the damage can be minimized by altering the design and strengthening the structures at the required spot.
Sequoia National Park is a national park in the southern Sierra Nevada east of Visalia, California, in the United States. It was established on September 25, 1890. The park is famous for its giant sequoia trees, including the General Sherman tree, one of the largest trees on Earth.
Cutting fluids are mainly used to increase the quality of machining and productivity. Nano cutting fluids are the combination of base cutting fluids and nano particles. The present study deals with milling of EN8 steel with three different lubrication conditions like dry, machining with water soluble oil and machining with vegetable oil based nano cutting fluid.
The Indian Rupee exchange rate depreciated 5.71 percent against the US dollar during the month of November. During the last 12 months, the Indian rupee exchange rate depreciated 14.27 percent against the US dollar. Historically, from 1973 until 2011 the USD/ INR exchange averaged 30.32 reaching an historical high of 52.84 in December of 2011 and a record low of 7.19 in March of 1973.
This review paper here deals with the concept of BCH coded and interleaved MIMO-OFDM (Multiple Input Multiple Output- Orthogonal Frequency Division Multiplexing), which improves the systems performance. The system shows a consistent improvement in BER performance. On adding BCH high performance Forward Error Correction (FEC) code on AWGN channel of OFDM with BPSK and QPSK technique, BER increases and also overcomes the major disadvantages like ISI (Inter Symbol Interference) and ICI (Inter Carrier Interference).
Especially for the Java community, birth, marriage, death, and fortune is fate of Hyang Murbeng Dumadi. The ability of Javanese people in reading signs of the times via Waskitha and Wicaksana has been passed down from long before. Java script, petungan, and the fortune of people refers to the change of seasons, the cycles of nature, and conscience.
The present work has been done numerically to simulate the combustion instabilities in solid rocket motors. Hot flow with the flow of oxidizer and fuel injection is considered in this investigation. The flow is assumed to be steady in the numerical simulations. It must be clearly understood that the flow-acoustic coupling which is of primary interest in the context of rocket motor instabilities cannot be simulated entirely by incompressible flow calculations alone.
