Honda Power Unit

All that has to do with the power train, gearbox, clutch, fuels and lubricants, etc. Generally the mechanical side of Formula One.
mzso
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Re: Honda Power Unit

Post by mzso » Sat May 12, 2018 6:12 pm

Image

So. Will Hartley have an identical new engine tomorrow, or will it be an updated variant?
I expect Honda didn't finalize whatever they're planning for Canada, but will he get a more powerful engine? Were there any reports?

Big Tea
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Re: Honda Power Unit

Post by Big Tea » Sat May 12, 2018 6:17 pm

mzso wrote:
Sat May 12, 2018 6:12 pm
https://www.youtube.com/watch?v=nwaDezlZFh4

So. Will Hartley have an identical new engine tomorrow, or will it be an updated variant?
I expect Honda didn't finalize whatever they're planning for Canada, but will he get a more powerful engine? Were there any reports?
I would have thought it would be prudent to have the latest 'proven' version standing by, as it is far from unusual to need a change. Honda are past masters of the game ( :D )

G'dayBruce
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Re: Honda Power Unit

Post by G'dayBruce » Sat May 12, 2018 9:32 pm

Been wondering that myself. If he gets the soon to be old spec, then he's going to struggle even more in upcoming races if the Canada update proves to be a good one. That being said, he'd probably be more concerned about whether he'll even have a drive come Montreal...

godlameroso
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Re: Honda Power Unit

Post by godlameroso » Sat May 12, 2018 10:13 pm

How much of the combustion depends on ROS(reactive oxygen species)? Most of the fuel is hydro carbons, and air is typically inert, so heat and spark are used to create ROS in order to break the bonds in the fuel correct? Which means ultimately like in so many other reactive processes it starts with superoxide free radicals at the spark gap?
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anthonyfa18
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Re: Honda Power Unit

Post by anthonyfa18 » Mon May 14, 2018 12:22 pm

so after a hard Spanish Grand Prix for toro ross honda, now we move to the 2 day test, will honda be testing its next upgrade power unit ???

Soichiro
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Re: Honda Power Unit

Post by Soichiro » Mon May 14, 2018 7:37 pm

anthonyfa18 wrote:
Mon May 14, 2018 12:22 pm
so after a hard Spanish Grand Prix for toro ross honda, now we move to the 2 day test, will honda be testing its next upgrade power unit ???
From the interviews, I would say Most probably - "testing new ideas".

anthonyfa18
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Re: Honda Power Unit

Post by anthonyfa18 » Tue May 15, 2018 4:18 pm

some sad news from today test

https://twitter.com/ToroRosso/status/996388000862007296
Testing update: Due to a chassis-related issue, we have had to change the power unit as a precautionary measure. The team is pushing hard to get the car back on track before the end of the session

Thunder18
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Re: Honda Power Unit

Post by Thunder18 » Tue May 15, 2018 4:30 pm

Why would chassis affect PU so drastically?? Is it Hartleys chassis??

nzjrs
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Re: Honda Power Unit

Post by nzjrs » Tue May 15, 2018 5:51 pm

anthonyfa18 wrote:
Tue May 15, 2018 4:18 pm
some sad news from today test

https://twitter.com/ToroRosso/status/996388000862007296
Testing update: Due to a chassis-related issue, we have had to change the power unit as a precautionary measure. The team is pushing hard to get the car back on track before the end of the session
Worth noting that they successfully got back out again - they did the PU change in < 2 hours.

urbanglowcam
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Re: Honda Power Unit

Post by urbanglowcam » Tue May 15, 2018 5:57 pm

nzjrs wrote:
Tue May 15, 2018 5:51 pm
anthonyfa18 wrote:
Tue May 15, 2018 4:18 pm
some sad news from today test

https://twitter.com/ToroRosso/status/996388000862007296
Testing update: Due to a chassis-related issue, we have had to change the power unit as a precautionary measure. The team is pushing hard to get the car back on track before the end of the session
Worth noting that they successfully got back out again - they did the PU change in < 2 hours.
Great to hear. Any signs of a newer spec being used?

etusch
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Re: Honda Power Unit

Post by etusch » Tue May 15, 2018 6:46 pm


godlameroso
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Re: Honda Power Unit

Post by godlameroso » Wed May 16, 2018 3:01 am

Seeing as the compressor is essentially unlimited aside from being a single stage centrifugal compressor, is there any chance microjets could be used to further optimize the compressor blades, volute etc, or the intake ports in the head?

https://calhoun.nps.edu/bitstream/handl ... sequence=1

"At the high Mach number case (M=0.4), the use of microjets appears to eliminate the shock structures that are responsible for triggering the shock-induced separation, establishing the fact that the use of microjets is effective even in controlling dynamic stall with a strong compressibility effect. In general, microjet jet control has an overall positive effect in terms of maintaining leading edge suction pressure and preventing flow separation."

https://file.scirp.org/pdf/JFCMV_2014041509365959.pdf

"The laboratory results show that the microjet actuators are an effective means of controlling separation with fairly low supply pressures and flow rates. Only relatively robust and straightforward diagnostics can be used to determine the flow conditions on the UAV during flight. As such, tufts are installed on the aircraft’s wing to serve as a qualitative way of measuring control efficacy. Results from the flight tests confirm that this flow control system is capable of delaying flow separation in the complex flows occurring during flight."

https://ntrs.nasa.gov/archive/nasa/casi ... 023593.pdf
Active-Adaptive Control of Inlet Separation Using Supersonic Microjets

Microjet-based Separation Control Using a Virtual Sensor for Degree of Separation
https://static1.squarespace.com/static/ ... ontrol.pdf

Just a thought.
The height of cultivation is really nothing special. It is merely simplicity; the ability to express the utmost with the minimum. Mr.Lee

gruntguru
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Re: Honda Power Unit

Post by gruntguru » Wed May 16, 2018 5:26 am

Nice!
No doubt the compressor useable flow region could be extended (moving the surge line to the left) - if it was possible to produce the intricate galleries and the nozzles themselves near the leading edges of the blades. 3D printing would do it! Compressor discharge pressure would be sufficient to drive the micro-jets.
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dren
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Re: Honda Power Unit

Post by dren » Wed May 16, 2018 12:02 pm

Yes, that is an interesting idea on the compressor. It'd have to be purely passive, right?
Honda!

gruntguru
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Re: Honda Power Unit

Post by gruntguru » Thu May 17, 2018 1:56 am

dren wrote:
Wed May 16, 2018 12:02 pm
Yes, that is an interesting idea on the compressor. It'd have to be purely passive, right?
Need to run galleries (green) through the compressor impeller and connect to the compressor discharge. All internal to the compressor design so should be considered "passive".
Image
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