International Conference on

Design and Engineering of Lighter-Than-Air systems

(DELTAs - 2022)

22 - 26 June, 2022

Lighter-Than-Air Systems Laboratory

Department of Aerospace Engineering

Indian Institute of Technology Bombay, Powai, Mumbai, India

Global Reach of DELTAs 2022 Conference

Conference Schedule

Conference Day 4 (25 June 2022)

Day 4 - Model Airship Regatta (26 June 2022)

Final Round and Prize Distribution

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Conference Day 3 (25 June 2022)

Day 3 - Model Airship Regatta (25 June 2022)

Registration and Trials

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Conference Day 2 (24 June 2022)

Day 2 - Conference (24 June 2022)

09:00 - 09:45 Invited Talks Dr. Barry Prentice, University of Manitoba

09:45 - 10:15 Keynote Talk Mr. James Egan, Plimp Airships

10:15 - 10:30 Tea Break

10:30 - 11:00 Invited Talk Dr. Csaba Singer, h-aero

11:00 - 11:25 Paper ID : 015

Optimization of Modified TPU/TiO2 Films using UV Additives for Improved Weathering Properties

Ms. Bharti Rana, IIT Delhi

11:25 - 11:50 Paper ID : 017

Evaluation of High-Performance Fabric Based Laminated Hull Material for High Altitude Airship

Dr. Shikha Chouhan, IIT Delhi

11:50 - 12:15 Paper ID : 020

Functionalization of Polyurethane adhesives with UV additives to enhance weather stability of laminated structures

Ms. Shuchita Tomar, IIT Delhi

12:15 - 12:40 Paper ID : 021

Degradation Study of Aromatic and Aliphatic Polyurethane Films in Artificial Weathering: Impact on gas barrier and

Mechanical Properties

Dr. Neeraj Kumar Mandlekar, IIT Delhi

12:40 - 12:50 Sponsored Poster 1 Mr. Nicolas Caeymaex, Flywin

12:50 - 13:00 Sponsored Poster 2 Mr. S. J. Rao, Garware Technologies

13:00 - 13:45 Lunch Break

13:45 - 14:10 Paper ID : 053

Estimation of Stability Derivatives due to Translational Motion of Various LTA Vehicles using CFD

Mr. Anoop Sasidharan, Amrita University

14:10 - 14:35 Paper ID : 002

Effect of Geometrical Parameters of a Tethered Aerostat on Longitudinal Stability Boundaries

Dr. Rakesh Kumar, PEC

14:35 - 15:00 Paper ID : 018

Adaptive Control Design for Stratospheric Airship with Actuator Faults

Mr. Het Joshi, IIT Madras

15:00 - 15:10 Sponsored Poster 3 Mr. John Craig, Marjohrita Consultancy

15:10 - 15:20 Sponsored Poster 4 Dr. Csaba Singer, h-aero

15:20 - 15:35 Tea Break

15:35 - 16:00 Paper ID : 019

Look Ahead Steering Based Path Following Control for an Airship

Mr. Ramesh Hun, IIT Madras

16:00 - 16:25 Paper ID : 047

Autonomous Tilt Rotor Stabilized Plimp Hybrid Airship Unmanned Aerial Vehicle

Mr. Ajay Vishwath, Parul University

16:25 - 16:50 Paper ID : 052

Numerical Approach to Maneuver Design and Feasibility Evaluation for the Autonomy of Airship

Ms. Gobiha D., IIT Madras

16:50 - 17:25 Keynote Session Mr. Khurshed Dordi, DB Group India

17:25 - 18:00 Visit to Exhibition Stalls and Viewing Contributed Posters*

18:00 - 19:30 Panel Discussion II : "Artificial Intelligence for Airship Flight Path Control", moderated by Mr. Frank Neumann, IMIEU

19:30 - 20:00 Valedictory Session

*Exhibition Stalls and Contributed Posters can also be visited during the Lunch and Tea breaks

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Conference Day 1 (23 June 2022)

Day 1 - Conference (23 June 2022)

09:00 - 10:00 Registration

10:00 - 10:20 Welcome Address and Overview of DELTAs - 2022 Dr. Rajkumar S. Pant, IIT Bombay

10:20 - 10:50 Invited Talk Dr. Tessy Thomas, DRDO

10:50 - 11:00 Release of Conference Proceedings

11:00 - 11:15 Tea Break

11:15 - 12:30 Panel Discussion I:

"Relevance of Lighter-Than-Air systems for the Future of Indian Aviation", moderated by Dr. Harpreet A De Singh, AeSI & IWPA

12:30 - 13:30 Lunch Break

13:30 - 14:00 Keynote Talk Ms. Swathi Mehta, Empyreal Galaxy

14:00 - 14:25 Paper ID : 016

Airship turn performance estimated from efficient potential flow panel method

Dr. Jesus Gonzalo, University of León

14:25 - 14:50 Paper ID : 036

Numerical Investigation of Laminar to Turbulent Boundary Layer Transition over Airship Envelopes

Mr. Shantanu Gulawani, IIT Bombay

14:50 - 15:15 Paper ID : 040

Effect of Reynolds Number on the aerodynamic characteristics of leading-edge protuberanced airship fin

Mr. C. Hari Babu, Kalasalingam University

15:15 - 15:30 Tea Break

15:30 - 16:00 Keynote Talk Mr. Goparaj Gopalakrishnan, Flying Whales

16:00 - 16:25 Paper ID : 008

CPACS LTA - Using common data structures for visualization and optimization of airships

Mr. Carl Serafin Eissing, Aerarium e.V.

16:25 - 16:50 Paper ID : 009

Airship Sling-Load Operations: a Model Flight-Test Approach

Mr. Johannes Eissing, Aerarium e.V.

16:50 - 17:15 Paper ID : 026

A Multidisciplinary Design Optimisation (MDO) Algorithm for the Automatic Sizing of an Unmanned LTA Platform

Dr. Piero Gili, Politecnico di Torino

17:15 - 17:40 Paper ID : 027

The concepts of telescopic and self-deployable tensegrity-based helium-filled aerostats

Dr. Cezary Graczykowski, Polish Academy of Sciences

17:40 - 18:05 Paper ID : 037

Designing Helium-Filled Aerostats Applying Scaling Procedure, Mini-Models CANDY and Fly-Tests on SKYLAB

Dr. Jan Holnicki-Szulc, Polish Academy of Sciences

19:00 - 21:30 Conference Banquet

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Pre - Conference Workshop

Pre-Conference Workshop (22 June 2022)

09:30 - 10:00 Introduction to Lighter-Than-Air (LTA) systems Dr. Manish Tripathi, IIT Bombay

10:00 - 10:30 Introduction to METACOMP and Software Suites and Workshop cases Dr. C. Balaji, Metacomp Technologies Pvt. Ltd.

10:30 - 10:45 Tea Break

10:45 - 12:15 Rigid Body RANS simulations of envelopes of LTA systems Mr. M. Mahendhran, Metacomp Technologies Pvt. Ltd.

12:15 - 13:45 Lunch Break

13:45 - 15:15 FSI simulations using Metacomp Software Suites Dr. C. Balaji, Metacomp Technologies Pvt. Ltd.

15:15 - 15:30 Tea Break

15:30 - 17:30 Hands on Training Session

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