Papers by Vijayalakshmi Bharathi Kovvuri
International Journal of Engineering Applied Sciences and Technology, Jan 30, 2020
The objective of this research is to know, study and visualize (1)about the atmospheric parameter... more The objective of this research is to know, study and visualize (1)about the atmospheric parameters, temperature, density, pressure at various altitudes of the earth atmosphere within the region from sea level to thirty-five kilometers altitude above; (2)the horizon of the Earth atmosphere; ozone layer presence and concentration of ozone gas at different altitudes; (3)the shape of the water molecules in the clouds;(4) the global warming gasses concentration in various regions of atmosphere; (5)the moisture concentration at various regions of earth atmosphere; (6)to calibrate the theoretical data and to understand the concept of fluid separation. A satellite system is made with the help of raspberry pi as the main computer to find the physical properties such as temperature, pressure, moisture percentage chemical properties such as carbon dioxide concentration, ozone concentration and attributes such as altitude and sky images; then the system is placed in a heat insulation chamber with all the sensors exposed to the atmosphere and the main system in the center. The system is now fixed to a latex balloon filled with helium gas. The setup is lifted due to buoyancy and at a certain point in time when the balloon expands at around 35000m the balloon explodes and the satellite starts to fall, the parachute gets ejected and the satellite makes a soft land to the ground, with the help of the position information transmitted by GPS, the satellite is tracked down and the recorded readings are tabulated and analyzed.
The objective of this study is to know the moisture absorption rate and its behavior (Swelling) o... more The objective of this study is to know the moisture absorption rate and its behavior (Swelling) of the Activated Carbon Reinforced Polymer Composite when it is subjected to mineral water, saline water, and moist soil environments. The composite is made up of activated carbon (reinforcement) that is taken by 1%, 2%, and 3% against the weight of composite material. The epoxy is taken in a separate beaker by weights of 99%, 98%, and 97% to that of the composite material, and about 10% (of epoxy) hardener is added and stirred mechanically, after a while the activated carbon is added slowly and gently stirred until a fine mixture is obtained. The mixture is now poured into a rectangular silicone mold, and is now left alone to cure under standard atmospheric conditions for 2 days. The solid particle erosion behavior of carbon and the reinforced epoxy composite has been characterized. The erosive wear of these composites has been evaluated at different impingement angles.
International Journal of Engineering Applied Sciences and Technology
The objective of this study is to know the moisture absorption rate and its behavior (Swelling) o... more The objective of this study is to know the moisture absorption rate and its behavior (Swelling) of the Activated Carbon Reinforced Polymer Composite when it is subjected to mineral water, saline water, and moist soil environments. The composite is made up of activated carbon (reinforcement) that is taken by 1%, 2%, and 3% against the weight of composite material. The epoxy is taken in a separate beaker by weights of 99%, 98%, and 97% to that of the composite material, and about 10% (of epoxy) hardener is added and stirred mechanically, after a while the activated carbon is added slowly and gently stirred until a fine mixture is obtained. The mixture is now poured into a rectangular silicone mold, and is now left alone to cure under standard atmospheric conditions for 2 days. The solid particle erosion behavior of carbon and the reinforced epoxy composite has been characterized. The erosive wear of these composites has been evaluated at different impingement angles. I.
International Journal of Engineering Applied Sciences and Technology
Aeroelasticity phenomena involve the study of the interaction between aerodynamic forces and elas... more Aeroelasticity phenomena involve the study of the interaction between aerodynamic forces and elastic forces (static aeroelasticity), aerodynamic forces, inertia forces and elastic forces (dynamic aeroelasticity), and aerodynamic forces, inertia forces, elastic forces and control laws (aeroservo-elasticity). Modern aircraft structures may be very flexible and this flexibility of the airframe makes aeroelastic study an important aspect of aircraft design and verification procedures. Wing torsional divergence and flutter are the two major aeroelastic phenomena considered in aircraft design. Divergence is a static instability which occurs when the static aerodynamic effects counteract the torsional stiffness of the structure. Flutter is a dynamic aeroelastic instability characterized by sustained oscillation of structure arising from interaction between the elastic, inertial and aerodynamic forces acting on the body. The present paper gives a fragrance of static and dynamic aeroelasticity problems aiming the readers to get an idea about the subject.
International Journal of Engineering Applied Sciences and Technology
Aeroelasticity phenomena involve the study of the interaction between aerodynamic forces and elas... more Aeroelasticity phenomena involve the study of the interaction between aerodynamic forces and elastic forces (static aeroelasticity), aerodynamic forces, inertia forces and elastic forces (dynamic aeroelasticity), and aerodynamic forces, inertia forces, elastic forces and control laws (aeroservo-elasticity). Modern aircraft structures may be very flexible and this flexibility of the airframe makes aeroelastic study an important aspect of aircraft design and verification procedures. Wing torsional divergence and flutter are the two major aeroelastic phenomena considered in aircraft design. Divergence is a static instability which occurs when the static aerodynamic effects counteract the torsional stiffness of the structure. Flutter is a dynamic aeroelastic instability characterized by sustained oscillation of structure arising from interaction between the elastic, inertial and aerodynamic forces acting on the body. The present paper gives a fragrance of static and dynamic aeroelasticity problems aiming the readers to get an idea about the subject.
Uploads
Papers by Vijayalakshmi Bharathi Kovvuri