Kaveri Engine

[Anants]

Kaveri is a leaky turbojet right now. The proposal for a VCE is still a proposal.

We are aiming to operationalize the Kaveri first & foremost.

Theoretically, a leaky turbojet can be converted to a VCE. But this would require a big upgrade to the hot section of the engine. VCE would allow the bypass ratio to be increased, with that the TET would also increase. If the hot section of the engine cannot survive a higher TET, VCE would be pointless.

Kaveri prototype 8 (K8)- 1430 kg (equiaxed blades & vanes)
Kaveri prototype 9 (K9)- 1235 kg (DS blades & vanes. This prototype was flight tested in Russia)
upgraded Kaveri prototype 9 (K9)- 1180 kg (new distortion tolerant fan, single crystal blades & vanes, YSZ-LZ TBC, modified gearbox)
Kaveri prototype 8 (K10)- 1100 kg (target weight)

Modification to the design, especially the afterburners. Inclusion of 3D printed parts in cold section of the engine.

Lab scale production. Used for ablative testing so far.

By itself BMGs may not be as effective. But, BMG when sandwiched with CMC can make excellent TBC material.

BMGs are metals except they don't have crystalline atomic matrix. They have an amorphous matrix like glasses. BMGs are incredibly tough, very lightweight & have better high temp creep resistance than CMCs.

CERMET is a subset of CMC.

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The above is a conversation between myself & Gautam Sarkar of Strategic Frontier . He's been following the program for a long time & has done his Masters in metallurgical engineering which means he knows what he's talking about.

Can you ask Gautam to join here?

 

[Azaad]

Can you ask Gautam to join here?

He's a moderator there . Doubt he'd join. Moreover he was a member of DFI though he rarely posted there.