Wyniki wyszukiwania

1

The effect of thickness of crude oil layers on the attenuation of the surface capillary wave

100%

Linde B., Pogorzelski S., Sliwinski A.

Oceanologia

|

1986

|

tom 24

2

Interrelationship between the process of surface wave generation caused by an air stream and wave attenuation process on water covered with a monolayer of crude oil derivative

100%

Pogorzelski S., Linde B., Sliwinski A.

Oceanologia

|

1986

|

tom 24

3

Scots pine needle surface wettability parameters as indicators of air pollution impacts

100%

Rochowski P., Pogorzelski S., Szurkowski J.

Current Topics in Biophysics. Supplement

|

2013

|

tom 36

|

nr 2A: Posters

4

Aspects of the physical properties and the visco-elastic features of the sea water - oil system

100%

Khalifa S. S., Pogorzelski S., Linde B., Sliwinski A.

Oceanologia

|

1992

|

tom 32

5

The attenuation of short surface wind waves by monolayer oil films

100%

Khalifa S. S., Linde B., Pogorzelski S., Sliwinski A.

Oceanologia

|

1992

|

tom 32

6

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Hydrocarbons on sea water: steady-state spreading signatures determined by an optical method

100%

Boniewicz-Szmyt K., Pogorzelski S., Mazurek A.

Oceanologia

|

2007

|

tom 49

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nr 3

The spreading properties of several hydrocarbons (vegetable, engine, gear and crude oils) on distilled and artificial sea water were determined under laboratory conditions using a novel optical method. With the aid of Langmuir’s equation, the geometrical signatures of a discrete lens of each hydrocarbon droplet floating on a water tank served to calculate the entering E (31.30–94.18 mN m−1) and spreading S (−3.50 to −57.49 mN m−1) coefficients, and equilibrium thicknesses t∞ (0.20–1.25 cm). They appeared to be in agreement with the values derived from direct interfacial tension measurements (Wilhelmy plate and stalagmometer methods). Empirical relations of the normalized lens radius rL/rdrop and S on the water surface tension γAW were postulated as being of significant value in oil spill assessment studies at sea. The parameters obtained together with the surface properties of a natural surfactant-containing water body represent the principal input data required for modelling the spreading of a surface-tension-gradient-driven oil spill at sea.

7

Detection of oil derivative substances on a sea surface by statistical analysis of scattered acoustic signals

100%

Khalifa S. S., Linde B., Pogorzelski S., Sliwinski A.

Oceanologia

|

1992

|

tom 32

8

Detection of wavy sea surface oil-derivative contamination with forward specular high-frequency scattering

76%

Pogorzelski S., Rochowski P., Grzegorczyk M., Linde B. B. J., Skrodzka E., Bielasiewicz L.

Polish Maritime Research

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2020

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tom 27

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nr 1

A spectrum of low-frequency (20‒30 Hz) amplitude fluctuations of the ultrasonic (10 MHz) signal specularly scattered from water surfaces covered with monomolecular and thicker crude oil origin films of well-defined, oceanographically relevant viscoelastic properties was examined in laboratory and at-sea conditions. The relationship between the surface water wave (30 Hz) damping coefficient and the oil layer thickness was established, and compared to the one predicted by the classical Stokes theory. The depression of the spectral energy density of wind-driven waves by surface films was inferred from the ratio of acoustic signal fluctuations spectra with/without films, and compared to that resulting from the Marangoni damping theory applicable to monolayers of particular surface viscoelasticity. The agreement between the theory and experimental data was satisfactory. As shown in at-sea experiments performed with a free-floating, buoy-like acoustic system, and an artificial oil slick spread over the Baltic Sea surface, the film’s rheological surface properties can be recovered from acoustic surface probing, as well as oil spill edge detection. Simultaneous statistical analyses of the scattered signal amplitude distribution parameters turned out to be unequivocally related to the oil substance fraction weight, oil layer thickness, and the form of oil contamination

Ograniczanie wyników

6 Oceanologia

1 Current Topics in Biophysics. Supplement

1 Polish Maritime Research

8 Pogorzelski S.

5 Linde B.

5 Sliwinski A.

3 Khalifa S. S.

2 Rochowski P.

1 Bielasiewicz L.

1 Boniewicz-Szmyt K.

1 Grzegorczyk M.

1 Linde B. B. J.

1 Mazurek A.

1 Skrodzka E.

1 Szurkowski J.

1 2020

1 2013

1 2007

3 1992

2 1986

The effect of thickness of crude oil layers on the attenuation of the surface capillary wave

Interrelationship between the process of surface wave generation caused by an air stream and wave attenuation process on water covered with a monolayer of crude oil derivative

Scots pine needle surface wettability parameters as indicators of air pollution impacts

Aspects of the physical properties and the visco-elastic features of the sea water - oil system

The attenuation of short surface wind waves by monolayer oil films

Hydrocarbons on sea water: steady-state spreading signatures determined by an optical method

Detection of oil derivative substances on a sea surface by statistical analysis of scattered acoustic signals

Detection of wavy sea surface oil-derivative contamination with forward specular high-frequency scattering