DAC OF BREF · Dynamics and Control of Breath Figures
7РП — „Хора“ (Действия „Мария Кюри“)
- Период
- 2008-09-01 → 2010-10-15
- Финансиране от ЕС
- 159 734 €
- Участници
- 1
- Схема
- MC-IIF
Линиите свързват координатора с партньорите.
Накратко на български
Динамиката на кондензиралите капки вода върху различни повърхности се анализира чрез експерименти и симулации. Това помага да се разбере как се формират и движат микрокапките при различни условия и свойства на материала.
Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.
Резултати накратко
Periodic Report Summary - DAC OF BREF (Dynamics and control of breath figures)
The project entitled 'Dynamics and control of breath figures' had four main objectives. Out of these four objectives we completed two, one was in progress by the time of this report and another was to be achieved via further collaboration in the near future. More specifically, the project achievements were the following: 1. study the dynamics of breath figures on substrate having a contact angle ranging from 0 degrees to higher than 150 degrees both experimentally and through computer simulation. This work was published in Applied Surface Science vol. 256, p. 4930 in 2010. 2. study the growth dynamics of breath figures on substrate having heterogeneous patterns of small hydrophilic areas surrounded by large hydrophobic areas. The same study was also planned to be performed using Monte Carlo simulation. The first half of this work was presented as an oral presentation in the American Physical Society's March Meeting, which was held at Portland, United States of America, from 15 to 19 March 2010, while the remaining part of the work was presented as a poster presentation at '146 Faraday discussions', an international conference held between 12 and 14 April 2010 at Richmond, Virginia, United States of America. All results would also be disseminated soon through an international referred journal. Additional work included: 3. condensation induced jumping drops, which was part of the necessary additional project work and was published in Physical Review E. vol. 80, p. 031604 in 2009. 4. jumping kinetics of water drops on cyclohexane below the melting point. By the time of this periodic report the relevant results were to be submitted to a reputed journal.
Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз
Цел на проекта
In this project, we aim to study, mainly experimentally, the dynamics of the commonly known ""breath figures"", which are the patterns appearing due to dew condensation onto cold surfaces. The breath figures, and their dynamics depend mostly on the interaction between the substrate (either a solid or a liquid) and the condensing compounds in a specific environment. The first objective of the proposal consists on to study the influence of the hydrophilic/phobic character in the growth dynamics and morphology of the breath figures. Specifically, their behavior in the case of super-hydrophobic surfaces will allow us to focus on dynamical self-cleaning assisted by breath figure formation. This is a subject of much technological interest. The second objective will deal with the spatial dependence of the breath figures appearing on non-symmetric heterogeneous substrates (small hydrophilic areas surrounded by large hydrophobic ones). This will help us to understand the mechanisms which are not directly related to the contact angle, i.e. the heat and mass transfer and the environmental flows. All the issues related to heat transfer also own much applied interest, apart from their fundamental one. The third objective is to study the competition of two immiscible condensing fluids into the breath figure formation. We will focus mainly on the kinetics, as well as on the symmetries of the pattern formed, when the condensation rates of the two fluids are of the same order. The last objective will characterize the influence of controlled convection of the (liquid) substrate into the dew patterns formed. The objectives of the proposal will shed light on this subject under unexplored conditions yet, which will give us the correct clues in order to understand the condensation processes much better. This should also allow to control the breath figures, which is a major challenge for applications and for the physics behind this subject.""
Оригинален текст от CORDIS (на английски).
Участници
- UNIVERSIDAD DE NAVARRA · PamplonaКоординаторИспания
Връзки
Данни: CORDIS, © Европейски съюз