Dr. Sreenadh Chevula

@upm.es

Associate Professor, Department of Aerospace Engineering
Lakireddy Bali Reddy College of Engineering (LBRCE)

Dr. Sreenadh Chevula


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https://researchid.co/sreenadh

EDUCATION

Ph.D in Aerospace Engineerng
6

Scopus Publications

50

Scholar Citations

4

Scholar h-index

2

Scholar i10-index

Scopus Publications

  • Experimental and Theoretical Study of Internal Pressure Loads on Boundary Walls under Gusty Wind Conditions
    Sreenadh Chevula, Satya Prasad Maddula
    International Journal of Aerospace Engineering, 2022
    This work contains an acceptable solution to the most practical interest to reduce the internal pressure load variations acting on closed envelops (i.e., inner building walls, fairing of rocket, and missile payloads) under gusty wind conditions. To simulate the gusty wind conditions (i.e., tangential unsteady flow condition), an experimental setup of a wind tunnel with a sinusoidal gust generating mechanism has been established in IDR of the Universidad Politécnica de Madrid (IDR/UPM), Spain. The wind tunnel has been equipped with an air reservoir with vent holes. The pressure jumps shown across the vent holes are studied as a function of sinusoidal gust frequency, volume of the air reservoir, and vent hole size. A theoretical model (based on the mass conservation equation and polytropic law gas evolution) has been proposed to predict the pressure jumps and variations under gusty wind conditions. At the end of the work, theoretical and experimental results have been studied and compared. The relationship between pressure loss coefficient ξ and flow coefficient α under unsteady flow conditions has been evaluated.
  • A Computational Design Analysis of UAV's Rotor Blade in Low-Temperature Conditions for the Defence Applications
    Sreenadh Chevula, Sankeerth Chillamcharal, Satya Prasad Maddula
    International Journal of Aerospace Engineering, 2021
    This paper discusses about the critical situations faced by the Defence operations with drones in the area of Siachen Glacier in the Himalayas. The reasons for the structural failures in drone’s rotor blades and the low-performance efficiency of the drones at low-temperature conditions are highlighted. A possible solution to the above-mentioned problems has been addressed by introducing a new boundary design in the rotor blades and composite materials. The results which are shown in this paper are obtained by the computational analysis facility located at the Department of Aerospace Engineering, School of Technology, GITAM (Deemed to be University), Hyderabad. By mimicking the Siachen Glacier atmosphere conditions, the proposed rotor blade design has been analysed in CFD.
  • Design And Testing Of Rocket Motors With Composite Propellants
    Sreenadh Chevula Sreenadh Chevula and
    International Journal of Mechanical and Production Engineering Research and Development, 2019
    experimental testing and the results of positive and negative obtained in more than one test will be discussed and solutions will be provided for the obtained negative results.
  • Estimation of the correction term of pitot tube measurements in unsteady (gusty) flows
    Sreenadh Chevula, Ángel Sanz-Andres, Sebastián Franchini
    Flow Measurement and Instrumentation, 2015
  • Aerodynamic external pressure loads on a semi-circular bluff body under wind gusts
    Sreenadh Chevula, Angel Sanz-Andres, Sebastián Franchini
    Journal of Fluids and Structures, 2015
  • An experimental and theoretical study of unsteady flow (gust) effects on structures
    Ch. Sreenadh, A. Sanz-Andrés, S. Franchini, F. Navarro-Medina
    Wit Transactions on Modelling and Simulation, 2013
    The gust wind tunnel at IDR, Universidad Politecnica de Madrid (UPM), has been enhanced and the impact of the modification has been characterized. Several flow quality configurations have been tested. The problems in measuring gusty winds with Pitot tubes have been considered. Experimental results have been obtained and compared with theoretically calculated results (based on potential flow theory). A theoretical correction term has been proposed for unsteady flow measurements obtained with Pitot tubes. The effect of unsteady flow on structures and laying bodies on the ground has been also considered. A theoretical model has been proposed for a semi-circular cylinder and experimental tests have been performed to study the unsteady flow effects, which can help in clarifying the phenomenon.

RECENT SCHOLAR PUBLICATIONS

  • Research Article Experimental and Theoretical Study of Internal Pressure Loads on Boundary Walls under Gusty Wind Conditions
    S Chevula, SP Maddula
    2022
  • Experimental and Theoretical Study of Internal Pressure Loads on Boundary Walls under Gusty Wind Conditions
    S Chevula, SP Maddula
    International Journal of Aerospace Engineering 2022 (1), 6316424 , 2022
    2022
    Citations: 1
  • A Computational Design Analysis of UAV’s Rotor Blade in Low Temperature Conditions for the Defense Applications
    S Chevula, S Chillamcharal, SP Maddula
    International Journal of Aerospace Engineering 2021, 16 , 2021
    2021
    Citations: 11
  • Experimental and Computational Design and Testing of a Valve Less Pulse jet Engine for the application of Micro Air Vehicle
    S Chevula
    International Journal of Mechanical and Production Engineering Research and … , 2020
    2020
  • DESIGN AND TESTING OF ROCKET MOTORS WITH COMPOSITE PROPELLANTS
    S Chevula
    International Journal of Mechanical and Production Engineering Research and … , 2019
    2019
    Citations: 5
  • Aerodynamic Internal Pressure Loads Applied On Nonstructural Elements under Wind Gusts
    S Chevula, Á Sanz-Andres, S Franchini
    International Journal of Scientific and Engineering Research 7 (6), 698 to 709 , 2016
    2016
  • Estimation of the correction term of pitot tube measurements in unsteady (gusty) flows
    S Chevula, Á Sanz-Andres, S Franchini
    Flow Measurement and Instrumentation 46, 179-188 , 2015
    2015
    Citations: 20
  • Aerodynamic external pressure loads on a semi-circular bluff body under wind gusts
    S Chevula, A Sanz-Andres, S Franchini
    Journal of Fluids and Structures 54, 947-957 , 2015
    2015
    Citations: 9
  • Aerodynamic loads on bluff bodies under wind gusts
    S Chevula
    ETSI Aeronáuticos (UPM) , 2015
    2015
    Citations: 4
  • An experimental and theoretical study of unsteady flow (gust) effects on structures.
    Sreenadh,Chevula, A. Sanz-Andrés
    Fluid Structure Interaction -2013 ( The 7th Subrata Chakrabarti … , 2013
    2013

MOST CITED SCHOLAR PUBLICATIONS

  • Estimation of the correction term of pitot tube measurements in unsteady (gusty) flows
    S Chevula, Á Sanz-Andres, S Franchini
    Flow Measurement and Instrumentation 46, 179-188 , 2015
    2015
    Citations: 20
  • A Computational Design Analysis of UAV’s Rotor Blade in Low Temperature Conditions for the Defense Applications
    S Chevula, S Chillamcharal, SP Maddula
    International Journal of Aerospace Engineering 2021, 16 , 2021
    2021
    Citations: 11
  • Aerodynamic external pressure loads on a semi-circular bluff body under wind gusts
    S Chevula, A Sanz-Andres, S Franchini
    Journal of Fluids and Structures 54, 947-957 , 2015
    2015
    Citations: 9
  • DESIGN AND TESTING OF ROCKET MOTORS WITH COMPOSITE PROPELLANTS
    S Chevula
    International Journal of Mechanical and Production Engineering Research and … , 2019
    2019
    Citations: 5
  • Aerodynamic loads on bluff bodies under wind gusts
    S Chevula
    ETSI Aeronáuticos (UPM) , 2015
    2015
    Citations: 4
  • Experimental and Theoretical Study of Internal Pressure Loads on Boundary Walls under Gusty Wind Conditions
    S Chevula, SP Maddula
    International Journal of Aerospace Engineering 2022 (1), 6316424 , 2022
    2022
    Citations: 1
  • Research Article Experimental and Theoretical Study of Internal Pressure Loads on Boundary Walls under Gusty Wind Conditions
    S Chevula, SP Maddula
    2022
  • Experimental and Computational Design and Testing of a Valve Less Pulse jet Engine for the application of Micro Air Vehicle
    S Chevula
    International Journal of Mechanical and Production Engineering Research and … , 2020
    2020
  • Aerodynamic Internal Pressure Loads Applied On Nonstructural Elements under Wind Gusts
    S Chevula, Á Sanz-Andres, S Franchini
    International Journal of Scientific and Engineering Research 7 (6), 698 to 709 , 2016
    2016
  • An experimental and theoretical study of unsteady flow (gust) effects on structures.
    Sreenadh,Chevula, A. Sanz-Andrés
    Fluid Structure Interaction -2013 ( The 7th Subrata Chakrabarti … , 2013
    2013