GTRE GTX 35VS Kaveri

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Physx32 said:
Hot section refers to the combustor, HP and LP turbines. Afterburner is a part of the exhaust system, not the hot core section.
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Both are part of hot section, combustion module comes before Turbine inlet but the energy is generated in Turbine inlet only… so basically the core of engine , we have major gap in Turbine inlet not other modules …
 
Tumba said:
Both are part of hot section, combustion module comes before Turbine inlet but the energy is generated in Turbine inlet only… so basically the core of engine , we have major gap in Turbine inlet not other modules …
Click to expand...
No. Afterburner is not a part of hot section. It's not even a part of the engine core. As I said, it's a part of the exhaust system.
 
Physx32 said:
Hot section refers to the combustor, HP and LP turbines. Afterburner is a part of the exhaust system, not the hot core section.
Click to expand...

Is Gas turbine inlet part of Hot section - my post you quoted was with regards to that? Kaveri had issues both in combustor as well as after burner. Combustor had Combustion instability and oscillation issues apart from Structural Integrity and Pressure loss IIRC there should be a DDR article on the same. While After Burner had screech issue. In new KDE I believe we resolved combustor issues as such. Work on After burner section which includes new after burner design from B rahmos corp is something we will have to wait and see
1748501108139.webp
 
Physx32 said:
No. Afterburner is not a part of hot section. It's not even a part of the engine core. As I said, it's a part of the exhaust system.
Click to expand...

No, the turbine inlet and the afterburning section are not the same. They are two separate and distinct sections of a military jet engine, with different locations and functions.
,The turbine inlet is located before the turbine and immediately after the main combustion chamber.
Its purpose is to channel the hot, high-pressure gas produced in the combustor into the turbine blades. The flow of this gas is what spins the turbine, which in turn powers the compressor at the front of the engine.

After-burning Section is a component of the exhaust section, located after the turbine and before the final exhaust nozzle.
Its function is to provide a temporary, significant increase in thrust (often called "reheat"). It works by injecting a large amount of fuel directly into the hot, oxygen-rich exhaust gases that have already passed through the turbine. This reignites the gases, causing them to expand even more rapidly and exit the nozzle at a much higher velocity. This process is highly fuel-inefficient and is typically used for short periods, such as during takeoff, combat maneuvers, or supersonic flight.
Simple Analogy
Think of the engine's main components in a line:
Intake → Compressor → Combustor → Turbine Inlet → Turbine → Afterburner → Nozzle
As you can see from the flow path, the turbine inlet feeds the turbine, while the afterburner comes much later in the sequence to boost the exhaust gases.
 
Always keep the word in mind

Gas Turbine … here Turbine Intel
Is the biggest thing to master … here what we get is N-body problem .. forces like High Temp and High Pressures are well known but there are other variables which comes into picture here its basically the heart of energy generation and here GTRE is lacking
 
Anants said:
Is Gas turbine inlet part of Hot section - my post you quoted was with regards to that? Kaveri had issues both in combustor as well as after burner.
Click to expand...
Yes, the turbine section is a part of the hot section. It comes right after the combustor section. As you said, GTRE is having issues in both the combustor (hot section), which has been fixed in KDE and afterburner (on which Brahmos aerospace is working).

Tumba said:
No, the turbine inlet and the afterburning section are not the same. They are two separate and distinct sections of a military jet engine, with different locations and functions.
,The turbine inlet is located before the turbine and immediately after the main combustion chamber.
Its purpose is to channel the hot, high-pressure gas produced in the combustor into the turbine blades. The flow of this gas is what spins the turbine, which in turn powers the compressor at the front of the engine.

After-burning Section is a component of the exhaust section, located after the turbine and before the final exhaust nozzle.
Its function is to provide a temporary, significant increase in thrust (often called "reheat"). It works by injecting a large amount of fuel directly into the hot, oxygen-rich exhaust gases that have already passed through the turbine. This reignites the gases, causing them to expand even more rapidly and exit the nozzle at a much higher velocity. This process is highly fuel-inefficient and is typically used for short periods, such as during takeoff, combat maneuvers, or supersonic flight.
Simple Analogy
Think of the engine's main components in a line:
Intake → Compressor → Combustor → Turbine Inlet → Turbine → Afterburner → Nozzle
As you can see from the flow path, the turbine inlet feeds the turbine, while the afterburner comes much later in the sequence to boost the exhaust gases.
Click to expand...
Look, I don't need a "explain like I'm 5" lesson of the Brayton cycle from you. I stand by what I said that afterburner/reheat is not a part of the hot core section.
 
Physx32 said:
Yes, the turbine section is a part of the hot section. It comes right after the combustor section. As you said, GTRE is having issues in both the combustor (hot section), which has been fixed in KDE and afterburner (on which Brahmos aerospace is working).


Look, I don't need a "explain like I'm 5" lesson of the Brayton cycle from you. I stand by what I said that afterburner/reheat is not a part of the hot core section.
Click to expand...
IMG_20250529_143630.webp
 
Physx32 said:
Yes, the turbine section is a part of the hot section. It comes right after the combustor section. As you said, GTRE is having issues in both the combustor (hot section), which has been fixed in KDE and afterburner (on which Brahmos aerospace is working).


Look, I don't need a "explain like I'm 5" lesson of the Brayton cycle from you. I stand by what I said that afterburner/reheat is not a part of the hot core section.
Click to expand...

I never said afterburner is part of hot section... I said combustion and turbine modules are hot section and GTRE is struggling in turbine inlet for which partnerships are sort from outside players and that is main part of hot section
 
we all failed as defence enthusiasts/analysts

everyone focussed on kaveri airborne version, no one even remembers the kaveri MGT version,
sad truth
 
Tumba said:
Always keep the word in mind

Gas Turbine … here Turbine Intel
Is the biggest thing to master … here what we get is N-body problem .. forces like High Temp and High Pressures are well known but there are other variables which comes into picture here its basically the heart of energy generation and here GTRE is lacking
Click to expand...
Its basically issue with lack of understanding of advanced metallurgy and no nation will give that as they have spend years and billions of $$ in R&D and some in Reverse Eng(China). First step is to build proper ground test facility and air test. We even depend on Russia for testing. Who knows if Russia(or for that matter any other nation) won't change results as frankly no supplier would want us to master Jet engine tech which is like bread and butter for these foreign suppliers.
 
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