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X-ORIGINAL-URL:https://aero.iisc.ac.in
X-WR-CALDESC:Events for Department of Aerospace Engineering
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TZID:Asia/Kolkata
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TZOFFSETFROM:+0530
TZOFFSETTO:+0530
TZNAME:IST
DTSTART:20260101T000000
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BEGIN:VEVENT
DTSTART;TZID=Asia/Kolkata:20260427T090000
DTEND;TZID=Asia/Kolkata:20260427T140000
DTSTAMP:20260516T084020
CREATED:20260424T050026Z
LAST-MODIFIED:20260425T074230Z
UID:10000120-1777280400-1777298400@aero.iisc.ac.in
SUMMARY:TAAI – Trust for Advancement of Aerodynamics in India
DESCRIPTION:Bringing together the minds transforming emerging aerospace technologies into operational reality \n  \nFeatured Talks \n\n The Stratospheric Challenges for a High-Altitude Platform\n\nDr. L Venkatrakrishnan\, Chief Scientist and Program Director – HAP \nHigh Altitude Platforms (HAP) or High Altitude Pseudo Satellites which are unmanned aerial vehicles in the stratosphere are the next big challenge with applications including disaster monitoring\, telecommunication\, and military reconnaissance. The requirement for persistence demands endurance far beyond conventional aircraft leading to extremely high aspect ratios and low wing loading resulting in lightweight structures. The result is a flexible wing structure with wingtip deflection to semi-span ratio likely to exceed 10% during flight thereby impacting flight dynamics of the aircraft. Additionally the low Reynolds number regime poses significant aerodynamic challenges for both wing as well as propeller design. The talk will visit recent efforts presently underway at CSIR-NAL to address the challenges in the design and development of a HAP. \n  \n\n Next-Generation UCAVs and Loitering Munitions: Enabling Technologies\, Indigenous Development\, and Operational Integration Pathways\n\nDr. Shanmugadas K.P.\, Assistant Professor\, Mechanical Engg\, IIT Jammu \nThis talk presents a comprehensive overview of emerging technological trends shaping next-generation UCAVs and loitering munition systems\, with particular emphasis on indigenous development pathways aligned with Indian operational requirements. The discussion will cover system-level design considerations including propulsion selection\, aerodynamic configurations\, endurance–range trade-offs\, and mission optimization for contested environments. \nA key focus of the presentation will be on technology development initiatives being pursued through academia–startup–user collaboration frameworks\, highlighting ongoing research and prototyping efforts conducted in close interaction with the Indian Army and associated defence stakeholders. \n\n New Generation Aircraft Technologies for the Fourth Revolution in Aerospace\n\nDr. Rakshith Raghavan Belur\, Head of Flight Physics\, Airbus \nThe aerospace industry is entering its fourth major revolution – sustainability. Following the breakthroughs of enabling human flight\, ensuring safety\, and driving affordability\, the focus has now shifted to fundamentally reimagining aviation for a sustainable future. Airbus is at the forefront of this transformation\, pioneering new technologies\, aircraft configurations\, and design paradigms to meet ambitious environmental goals while sustaining operational excellence. \nThis talk will provide a glimpse into some of the critical technologies and innovations being developed at Airbus\, and how they are shaping the next era of aviation. \nYou need to register for the event at https://www.taai.org.in/ and registration is free. \nFor More Details Visit: www.taai.org.in \n 
URL:https://aero.iisc.ac.in/event/taai-trust-for-advancement-of-aerodynamics-in-india/
LOCATION:Auditorium (AE 005)\, Department of Aerospace Engineering
ATTACH;FMTTYPE=image/jpeg:https://aero.iisc.ac.in/wp-content/uploads/2026/04/WhatsApp-Image-2026-04-18-at-07.46.32.jpeg
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BEGIN:VEVENT
DTSTART;TZID=Asia/Kolkata:20260428T110000
DTEND;TZID=Asia/Kolkata:20260428T130000
DTSTAMP:20260516T084020
CREATED:20260424T080555Z
LAST-MODIFIED:20260426T092339Z
UID:10000122-1777374000-1777381200@aero.iisc.ac.in
SUMMARY:Experiments on a fluidic pinball: wake dynamics in the chaotic regime
DESCRIPTION:Over the past decade\, the fluidic pinball has become a valuable benchmarkfor studying flow control strategies. The configuration consists of three independently rotating cylinders positioned at the vertices of an equilateral triangle\, with the flow directed perpendicularly to one of its sides. The cylinder rotation rates serve as the control inputs\, while velocity sensors located in the wake provide the outputs. Despite its geometric simplicity\, the wake behind the fluidic pinball displays complex interactions of multiple frequencies and nonlinear dynamics\, making it an excellent test case for the development and evaluation of control laws. While numerous studies have been performed numerically at low Reynolds numbers\, experimental literature is limited\, mainly due to the associated engineering challenges. \nThis study presents the findings from wind tunnel experiments on a fluidic pinball in the chaotic regime (1333 ≤ Re ≤ 3333). Planar two-component particle image velocimetry (PIV) is employed to capture the velocity field while the velocity time traces are obtained from hot-wire anemometry and laser Doppler velocimetry (LDV). The stochastic bistable dynamics in the wake is characterized and its sensitivity to external disturbances is demonstrated. Coherent structures in the wake along with the associated temporal dynamics and their physical implications are analyzed for both the stationary pinball and the flow with steady\, open-loop forcing. The effect of blockage and evolution of 3D structures in the forced wake is discussed. A brief overview of the architecture set up for real-time control is also presented. \nSpeaker : Dr. Aditya Desai \nBiography : \nDr. Aditya Desai is a post-doctoral researcher at the Laboratory of Interdisciplinary Numerical Sciences (LISN)- CNRS\, Orsay\,France working towards Reinforcement Learning-based control of a fluidic pinball. He completed his Master’s and PhD from the Department of Aerospace Engineering\, IIT Kanpur. His research interests are in the domain of experimental aerodynamics\, reduced order modelling and flow control\,  wakes\, vortex induce vibration and sports aerodynamics. He completed his BTech in Aerospace Engineering at IITK in 2009. \n  \n 
URL:https://aero.iisc.ac.in/event/xperiments-on-a-fluidic-pinball-wake-dynamics-in-the-chaotic-regime/
LOCATION:Auditorium (AE 005)\, Department of Aerospace Engineering
CATEGORIES:AE Seminar
ATTACH;FMTTYPE=image/jpeg:https://aero.iisc.ac.in/wp-content/uploads/2026/04/Aditya.jpg
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BEGIN:VEVENT
DTSTART;TZID=Asia/Kolkata:20260429T110000
DTEND;TZID=Asia/Kolkata:20260429T130000
DTSTAMP:20260516T084020
CREATED:20260424T045758Z
LAST-MODIFIED:20260426T090236Z
UID:10000121-1777460400-1777467600@aero.iisc.ac.in
SUMMARY:Precision in Flow: Advances in PIV\, Hematology\, and High-Heat Flux Cooling for Power Dense Electronics
DESCRIPTION:This talk presents a comprehensive overview of advanced fluidic and thermal management strategies across biomedical and defense applications. We begin with a systematic evaluation of Particle Image Velocimetry (PIV)\, specifically addressing the challenges of simultaneous velocity and particle size measurement. By analyzing Gaussian intensity variations across the light sheet and the optical system’s depth of field\, we propose a balanced methodology for achieving consistent\, high-fidelity size estimates.\nBuilding on these measurement techniques\, we discuss phase-locked PIV studies conducted within a pulsatile flow loop of a ‘mitral’ model bileaflet mechanical heart valve (MHV). The localized jets\, steep velocity gradients\, and vortex recirculation zones identified in vitro provide critical correlations to in-vivo platelet aggregation\, highlighting the intersection of fluid mechanics and clinical pathology.\nThe discussion then shifts to the pivotal role of fluidic design in next-generation whole blood cell analyzers\, utilizing hydrodynamic focusing and sheath flow to optimize optical flow cell performance for hematology. Finally\, we conclude with a high-level summary of mission-critical work in energy storage and high-heat flux cooling. These technologies are essential for the thermal management of power-dense electronics and 3D Heterogeneous Integration (3DHI)\, ensuring reliability in the next frontier of microelectronic architecture.\n\nSpeaker : Dr. Ganesh Subramanian\n\n Biography:\nDr. Ganesh Subramanian is a technical leader and program/functional manager with over 20 years of experience bridging fundamental research and mission-critical engineering. An IISc Aerospace PhD and certified PMP/Agile professional\, he has led a diverse portfolio of high-priority energy storage and thermal management programs funded by the U.S. DoD and DARPA\, while at Teledyne Technologies. He has had a decade-long tenure\, each at Abbott and BD Biosciences\, developing fluidic and thermal subsystems for hematology instruments and flow cytometers. His career is grounded in high-impact fluid dynamics research working jointly with NASA and the Cleveland Clinic\, combining academic rigor with a proven track record of leadership in highly regulated defense and medical sectors.
URL:https://aero.iisc.ac.in/event/precision-in-flow-advances-in-piv-hematology-and-high-heat-flux-cooling-for-power-dense-electronics/
LOCATION:STC Seminar Hall\, Dept. of Aerospace Engineering
CATEGORIES:AE Seminar
ATTACH;FMTTYPE=image/png:https://aero.iisc.ac.in/wp-content/uploads/2026/04/AE-Seminar-Ganesh-S-29April2026.png
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BEGIN:VEVENT
DTSTART;TZID=Asia/Kolkata:20260507T150000
DTEND;TZID=Asia/Kolkata:20260507T170000
DTSTAMP:20260516T084020
CREATED:20260505T050440Z
LAST-MODIFIED:20260505T050440Z
UID:10000123-1778166000-1778173200@aero.iisc.ac.in
SUMMARY:On Rayleigh Waves in Elastic Lattices
DESCRIPTION:A mathematical framework is presented to guide the search for Rayleigh waves in lattice materials based on periodic structure theory and the Bloch theorem. Architected materials with a periodic microstructure are distinguished from crystals in continuum anisotropic elasticity by the presence of at least one length scale and a band structure with partial and complete gaps for Bloch wave propagation. Non-affine bending deformations at or below the characteristic cell size are included by considering the unit cell as a framework of Timoshenko beams. We show that a quadratic eigenvalue problem\, with a Hermitian palindrome structure\, emerges from the force equilibrium and displacement compatibility relations for a propagating Bloch wave along any chosen orientation of the free edge/surface. Waves propagating along the free edge and penetrating to a finite depth into the medium are a partial set of eigensolutions of the nonlinear eigenproblem\, or its linearized symplectic form. These partial eigenwaves are used as the basis vectors to expand any arbitrary boundary displacements and force vectors\, which then constitute a complex asymmetric semi-infinite dynamic stiffness matrix. Surface and Rayleigh waves exist in its null space. Traction-free boundary conditions are used to show that the secular equation for Rayleigh waves is a real polynomial equation\, consistent with Stroh’s formulation for a length-scale independent anisotropic continuum crystal elasticity. Significant differences arising from the periodic structure are highlighted. Computational issues in the numerical solution of the structured eigenvalue problem for surface waves in lattices are addressed. Our formulation is applicable to any arbitrary lattice with complex unit cells and material architectures. Surface waves in a planar square lattice are found to emerge from the gaps for bulk waves in the band structure of the bulk waves. This research is a collaboration with Prof. N.A. Fleck of Cambridge University\, United Kingdom. \nSpeaker: Prof. Anasavarapu Srikantha Phani \nBiography: \nSrikanth is a tenured full professor at the University of British Columbia\, Vancouver\, Canada. He received a PhD from Cambridge University in the Dynamics and Applied Mechanics group under the supervision of Prof. Woodhouse and there he pursued postdoctoral work with Prof. Fleck in the Cambridge Center for Micromechanics. His principal research interests include\, Dynamics and Vibrations\, Mechanics of advanced materials\, and their applications in engineering and cardiovascular medicine. At UBC\, he held a Tier 2 Canada Research chair\, and received Killam Teaching prize.
URL:https://aero.iisc.ac.in/event/on-rayleigh-waves-in-elastic-lattices/
LOCATION:Auditorium (AE 005)\, Department of Aerospace Engineering
CATEGORIES:AE Seminar
ATTACH;FMTTYPE=image/jpeg:https://aero.iisc.ac.in/wp-content/uploads/2026/05/On-Rayleigh-Waves-in-Elastic-Lattices2-1_page-0001.jpg
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