Technical Discussion on VPM

Tomaz Canabrava tcanabrava at kde.org
Sun Mar 9 06:14:01 PDT 2014


On Sun, Mar 9, 2014 at 10:09 AM, Gopichand Paturi <gopichandpaturi at gmail.com
> wrote:

> Hi Robert,
> Small development in my understanding.
>
> Please see this link
> http://www.deepocean.net/deepocean/index.php?science04.php
>
> In this if you actually go down the page where it's given to handle
> reformulated VPM,
> I see that the  initial radius is same across compartments is defined as
> critical radius.
> Also this value is a constant (based on experiments) so I think we can
> proceed with this value which is of the order of microns.
>
>
> So, I think this is a valid statement,
>
>
> surface tension γ, the crumbling compression γc, the minimum initial
> radius r0min, the regeneration time constant τR and a composite parameter
> λ. The latter is related to the critical volume Vcrit. The parameters are
> the same for each compartment.
>

Gopichard, please don't send e-mails with colors, it is terrible to read on
some e-mail clients.


>
>
> Let me know your feedback.
>
> Regards,
> Gopichand.
>
>
> On Sun, Mar 9, 2014 at 2:25 PM, Gopichand Paturi <
> gopichandpaturi at gmail.com> wrote:
>
>> Hi Robert (atdotde),
>>
>> First of all I wanted to get clear on the initial radius of bubble to be
>> taken.
>> So, as I went through the permeability theory I learnt that, solutions
>> have inherently microbubbles called Nuclei of
>> size[0.01MicroMeter-1Micrometer].
>> that are at unstable equlibrium in every solution.
>>
>> I think we need to initialize bubble of each inert gas with the specific
>> size in a compartment depending on the mixture of the gas. That means I
>> think we need to put 3 bubbles in each compartment if it is a Trimix.
>>
>> So my idea is that we put the radius in order of some microns with the
>> knowledge of nuclei of specific gas in the solution as the initial value.
>>
>> Please give me your suggestions and ideas regarding this.
>>
>> Thanks&Regards,
>> Gopichand.
>>
>
>
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