Simple Tunnel ram Question

General engine tech -- Drag Racing to Circle Track

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digger
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Re: Simple Tunnel ram Question

Post by digger »

so back onto useful discussions....

can we all agree gravity has an effect, but its just negligilbe?

if you dont then provide a calculation or test as some kind of evidence.

no more bad anaologies please !!!
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Re: Simple Tunnel ram Question

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I think a problem is that engineers cannot calculate in a timely manner individual vector diagrams for 6.022×1023 atoms per mol and so appeal to probability. Einstein specifically mentions this when expounding on Brownian Motion. When an argument is made that attempts to identify salient points of contention within the movements by these atoms or particles the mathematics already bog down the framing -- they have been normalized.

This bothers some people and others not so much.
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Re: Simple Tunnel ram Question

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digger wrote: Sat Jun 15, 2019 7:48 pm so back onto useful discussions....

can we all agree gravity has an effect, but its just negligilbe?

if you dont then provide a calculation or test as some kind of evidence.

no more bad anaologies please !!!
I am not aware of an argument that it even makes a negligible difference.

As was stated previously, the head in the upward facing column is equal to the column of air adding to atmospheric pressure in the lower entry.

If gravity did make a difference, that would make a gravity powered perpetual motion device.
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Re: Simple Tunnel ram Question

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This is exactly what is scary. People surrendering their intellect to what can be calculated by a Turing Machine.

https://en.wikipedia.org/wiki/Infinity
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Re: Simple Tunnel ram Question

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SchmidtMotorWorks wrote: Sat Jun 15, 2019 7:56 pm
digger wrote: Sat Jun 15, 2019 7:48 pm so back onto useful discussions....

can we all agree gravity has an effect, but its just negligilbe?

if you dont then provide a calculation or test as some kind of evidence.

no more bad anaologies please !!!
I am not aware of an argument that it even makes a negligible difference.

As was stated previously, the head in the upward facing column is equal to the column of air adding to atmospheric pressure in the lower entry.

If gravity did make a difference, that would make a gravity powered perpetual motion device.
change in potential energy is real
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Re: Simple Tunnel ram Question

Post by Kevin Johnson »

SchmidtMotorWorks wrote: Sat Jun 15, 2019 7:56 pm ...
If gravity did make a difference, that would make a gravity powered perpetual motion device.
Please, do not contemplate becoming a patent clerk. It has been brought up numerous times that work is being performed to rarify the atmosphere prior to the considered parcel or ensemble of flow.

I totally get describing something as insignificant. I get disturbed when it is apparent the underlying physics and mathematics is not understood.
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Re: Simple Tunnel ram Question

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digger wrote: Sat Jun 15, 2019 8:13 pm change in potential energy is real
In this diagram, what potential energy is different for port A vs B?

Port A has the height of h1
Port B has the height of h1 +h2 - h2
(both = h1)
tunnel_ram.jpg
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Re: Simple Tunnel ram Question

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Pretty amazing, 19 pages of people arguing over something that in no way will play a part on engine modification.

Lets say you find out one or the other... What are you going to do about it?
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Re: Simple Tunnel ram Question

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GARY C wrote: Sat Jun 15, 2019 9:28 pm Pretty amazing, 19 pages of people arguing over something that in no way will play a part on engine modification.

Lets say you find out one or the other... What are you going to do about it?
People have argued about scientific and mathematical topics for thousands and thousands of years and in the process greatly advanced practical engineering. The idea is to get people to figure things out and not simply be told everything.
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Re: Simple Tunnel ram Question

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SchmidtMotorWorks wrote: Sat Jun 15, 2019 9:04 pm
digger wrote: Sat Jun 15, 2019 8:13 pm change in potential energy is real
In this diagram, what potential energy is different for port A vs B?

Port A has the height of h1
Port B has the height of h1 +h2 - h2
(both = h1)
tunnel_ram.jpg
Ok, some pretty basic errors in your diagram. Since gravity is in question and varies according to the distance between centers of mass, using the term "height" and then normalizing it to a Cartesian system rather than a physical one is incorrect. This is a basic error wherein you genetically import your assumptions into your answers, i.e. "both = h1."

I assume you are speaking more properly of altitude or elevation. Both of these concepts are well-known to racers.
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Re: Simple Tunnel ram Question

Post by MadBill »

GARY C wrote: Sat Jun 15, 2019 9:28 pm Pretty amazing, 19 pages of people arguing over something that in no way will play a part on engine modification.

Lets say you find out one or the other... What are you going to do about it?
If it turns out to matter, don't mount your tunnel ram engine upside down.
nembo-32-upside-down-motorcycle-engine-18.jpg
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Re: Simple Tunnel ram Question

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Kevin Johnson wrote: Sat Jun 15, 2019 9:41 pm
GARY C wrote: Sat Jun 15, 2019 9:28 pm Pretty amazing, 19 pages of people arguing over something that in no way will play a part on engine modification.

Lets say you find out one or the other... What are you going to do about it?
People have argued about scientific and mathematical topics for thousands and thousands of years and in the process greatly advanced practical engineering. The idea is to get people to figure things out and not simply be told everything.
Testing the theory would save thousands of years of argument.

Lets say gravity does effect it? Great! the carb is on top of the motor, lets say it hurts it?... Then what?

In theory based on atmospheric pressure wouldn't an engine make more power with the air inlet dragging the ground vs sitting above the hood? Could you even measure that difference in power if it even existed?
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Re: Simple Tunnel ram Question

Post by GARY C »

MadBill wrote: Sat Jun 15, 2019 9:51 pm
GARY C wrote: Sat Jun 15, 2019 9:28 pm Pretty amazing, 19 pages of people arguing over something that in no way will play a part on engine modification.

Lets say you find out one or the other... What are you going to do about it?
If it turns out to matter, don't mount your tunnel ram engine upside down.nembo-32-upside-down-motorcycle-engine-18.jpg
Well Crap!!!!! I already built motor mounts to turn my SBC upside down. :)
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Re: Simple Tunnel ram Question

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GARY C wrote: Sat Jun 15, 2019 9:58 pm
MadBill wrote: Sat Jun 15, 2019 9:51 pm
GARY C wrote: Sat Jun 15, 2019 9:28 pm Pretty amazing, 19 pages of people arguing over something that in no way will play a part on engine modification.

Lets say you find out one or the other... What are you going to do about it?
If it turns out to matter, don't mount your tunnel ram engine upside down.nembo-32-upside-down-motorcycle-engine-18.jpg
Well Crap!!!!! I already built motor mounts to turn my SBC upside down. :)
You should mount it vertically with the intake facing forwards. That way the g forces from launching will supercharge it. ;)
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Re: Simple Tunnel ram Question

Post by SchmidtMotorWorks »

Kevin Johnson wrote: Sat Jun 15, 2019 9:47 pm
SchmidtMotorWorks wrote: Sat Jun 15, 2019 9:04 pm
digger wrote: Sat Jun 15, 2019 8:13 pm change in potential energy is real
In this diagram, what potential energy is different for port A vs B?

Port A has the height of h1
Port B has the height of h1 +h2 - h2
(both = h1)

tunnel_ram.jpg
Ok, some pretty basic errors in your diagram. Since gravity is in question and varies according to the distance between centers of mass, using the term "height" and then normalizing it to a Cartesian system rather than a physical one is incorrect. This is a basic error wherein you genetically import your assumptions into your answers, i.e. "both = h1."

I assume you are speaking more properly of altitude or elevation. Both of these concepts are well-known to racers.
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