9789810229078

Discusses various problems of the existing nucleation theories and a new common microscopic (nonempirical) approach to overcome them. Reviews basic statements of the classical nucleation theory and quasichemical theory. DLC: Gases - Absorption and adsorption.

1 Brief review of the existing nucleation theories

1

(20)

1. Quasichemical model of condensation

2

(6)

1.1. Basic statements of the model

2

(2)

1.2. Discussion

4

(1)

1.3. Methods of solving

5

(3)

2. Classical nucleation theory

8

(7)

2.1. Critical size

8

(1)

2.2. Reaction rate constants

9

(1)

2.3. Basic equations of the theory

10

(2)

2.4. Some problems of CNT

12

(3)

3. Lothe and Pound nucleation theory

15

(2)

4. Failures in the prediction of the experimental data

17

(4)

2 Main principles of the microscopic theory of condensation

21

(54)

1. Formulation of the problem

22

(3)

2. Equilibrium solutions

25

(13)

2.1. General approach to deriving the equilibrium distribution

25

(5)

2.2. Example of the partition function for a simple model of the cluster

30

(4)

2.3. Analysis of peculiarities of the phase transition

34

(4)

3. Quasisteady solutions

38

(17)

3.1. Derivation of equations for concentrations

40

(7)

3.2. Method of solving the equations for concentrations

47

(2)

3.3. Equations in f variables

49

(6)

4. Constants and parameters of the theory

55

(14)

4.1. Cluster dissociation rate

56

(3)

4.2. The topmost level M(j)

59

(2)

4.3. Activation energy

61

(1)

4.4. Condensation coefficient

62

(1)

4.5. Parameter r

63

(4)

4.6. Parameter j*

67

(2)

5. Short summary of main formulae

69

(6)

5.1. The main equations

69

(1)

5.2. Parameters and constants of the theory

70

(5)

3 Juxtaposition with the other theories and experiments

75

(72)

1. Comparison with the existing theories

75

(7)

1.1. Nucleation

76

(3)

1.2. Droplets growth

79

(3)

2. Comparison with experimental data

82

(65)

2.1. Flows of the condensible vapor in nozzles and jets

85

(14)

2.2. Transport processes in a thermal diffusion chamber under nucleation

99

(10)

2.3. Scaling relations and crucial parameters

109

(8)

2.4. Results of the comparison with experiments for pure vapors

117

(21)

2.5. Influence of a carrier gas on the condensation kinetics

138

(9)

4 Kinetic theory of photostimulated nucleation

147

(28)

1. Statement of the problem. Governing equations

148

(4)

2. Stationary solutions

152

(2)

3. Quasisteady-state method

154

(5)

3.1. The first step

154

(3)

3.2. The second step

157

(2)

4. Discussion

159

(5)

5. Analysis of model assumptions

164

(4)

6. Analysis of the experimental data

168

(7)

5 Kinetic theory of ion-induced nucleation

175

(44)

1. Short review of the existing approaches

176

(1)

2. Formulation of the problem

177

(3)

3. Equilibrium solutions

180

(7)

3.1. Equations for determining the equilibrium concentrations

181

(2)

3.2. Equilibrium constants K(XXX), v equal to O,i,e

183

(4)

4. Solution of the kinetic equations. Quasisteady states

187

(14)

4.1. The first stage of the quasisteady-state method

187

(8)

4.2. The second stage of the quasisteady-state method

195

(6)

5. An analysis of specific features of heterogeneous condensation on ions and electrons

201

(18)

5.1. An analysis of equations for supersaturations

201

(10)

5.2. Heterogeneous condensation in expanding flows

211

(8)

Conclusions

219

(6)

Appendices

225

(38)

A. Dimensionless form of the system Eq. (2.2)

225

(3)

B. Low-pressure limit (j equal to 2,...,r - 1)

228

(6)

B.1. Region 3 (k less than or equal to p(j))

230

(1)

B.2. Region 2 (k equal to p(j) + 1,...,q(j))

230

(1)

B.3. Region 1 (k equal to q(j) + 1,...,M(j))

231

(2)

B.4. Intermediate case j equal to r

233

(1)

C. Quasisteady equations for concentrations

234

(6)

C.1. High-pressure limit (j Greater than r)

234

(1)

C.2. Intermediate case (j equal to r)

234

(2)

C.3. Low-pressure limit (j less than r)

236

(2)

C.4. Equations for monomers (j equal to 1)

238

(2)

D. FORTRAN subroutines for computing parameters of the theory

240

(23)

D.1. Initial data

240

(4)

D.2. Parameter r

244

(5)

D.3. Function j*

249

(2)

D.4. Function K(j)

251

(1)

D.5. Function n(je)

252

(4)

D.6. Quasisteady concentrations n(j)

256

(7)

References

263

(8)

Index

271

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Microscopic Theory of Condensation in Gases and Plasma

9810229070

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