Recent Trends in Fluid Mechanics

(RTFM)

Jan - April 2014

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Recent Trends in Fluid Mechanics

Recent Trends in Fluid Mechanics

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Industrial Tribology Machine Dynamics & Maintenance

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Alternative Energy Technology Laboratory,

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Amar Mullick, ProfessorNational Institute of Technology,

Durgapur, India.

Ashis Kumar SenAssistant Professor, Department

of Mechanical Engineering, Indian Institute of Technology Madras.

Bibhab Kumar Lodh Assistant Professor, Department of

Chemical Engineering, National Institute Technology, Agartala, India.

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Division, Indian Institute of Chemical Technology Hyderabad, India.

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Petroleum University Raisan, India.

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National Institute of Technology, Karnataka Suratkhal, India.

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I take the privilege to present the print version for the Volume 1 Issue (1) of Recent Trends in Fluid

Mechanics. The intension of RTFM is to create an atmosphere that stimulates creativeness, research

and growth in the area of fluid mechanics and applications.

The development and growth of the mankind is the consequence of brilliant Research done by

eminent Scientists and Engineers in every field. RTFM provides an outlet for research findings and

reviews in areas of fluid mechanics technology found to be relevant for national and international

recent developments & research initiative.

The aim and scope of the Journal is to provide an academic medium and an important reference for

the advancement and dissemination of research results that support high level learning, teaching and

research in the domain of fluid mechanics research.

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I hope you will enjoy reading this issue and we welcome your feedback on any aspect of the Journal.

Dr. Archana Mehrotra

Director

STM Journals

Director's Desk

STM JOURNALS

1. Analysis of Flow through Main Engine Control Unit (MECU) of a New Aircraft Fuel Control System under Various Aircraft Acceleration Arun Kumar Sc 'E', Kamesh Goyal Sc 'G', Pradyumna Ghosh, Ankit Gopal Pandey 1

ContentsRecent Trends in Fluid Mechanics

RTFM (2014) © STM Journals 2014. All Rights Reserved

Recent Trends in Fluid Mechanics

Volume 1, Issue 1

www.stmjournals.com

Analysis of Flow through Main Engine Control Unit

(MECU) of a New Aircraft Fuel Control System under

Various Aircraft Acceleration

Arun Kumar Sc ‘E’1, Kamesh Goyal Sc ‘G’

1, Pradyumna Ghosh

2*, Ankit Gopal Pandey2

1Regional Centre for Military Airworthiness, CEMILAC, HAL P. O. Lucknow, UP, India

2Department of Mechanical Engineering, Indian Institute of Technology (BHU), Varanasi, UP, India

Abstract A fuel control system is being designed and developed for a new aero engine of a fighter

aircraft. But existing facility doesn’t support the full operational testing of the individual

components of aircraft fuel control system under various aircraft acceleration conditions. In this paper theoretical analysis has been done to check the flow distribution of one of the basic

systems, i.e., Main Engine Control Unit (MECU) under various aircraft accelerations. It has

been observed that, in normal mode upon application of vertical orientated acceleration, for the flow rate of 1572 gph from the pump, a maximum variation of 0.17% in the

combustion chamber flow rate has been observed. For this case a maximum variation of 3.3% in pressure (at Upstream MPV) was also observed. These variations are within permissible

limit of variations that can be sustained by MECU circuit. In case of manual mode there

is a large offset between experimental and simulation results (as large as 10 percent) but effect of possible ‘g’ effect is within 2 percent of the base results. Moreover, effect of

sustained acceleration effect of ‘5 g’ for 5 min has also been analyzed and both the configuration and performance parameters are almost the same as the regular aircraft

acceleration. It has also been analyzed that Emergency Spill Valve (ESV) and Pump Pressure

Relief Valve (PPRV) which are spring loaded will not be falsely activated under operational ‘g’ effect.

Keywords: Aircraft acceleration, falsely activated, Main Engine control unit (MECU),

Sustained acceleration